UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with Cooling Fan, Aluminum M.2 Enclosure with USB 4, UASP & TRIM, NVMe Caddy Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs : ��غ��.co.uk: Computers & Accessories

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UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with Cooling Fan, Aluminum M.2 Enclosure with USB 4, UASP & TRIM, NVMe Caddy Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs

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Hardware interface	PCIE x 4, Thunderbolt
Brand	UGREEN
Colour	silver
Product dimensions	15L x 3W x 10H centimetres
Hardware platform	Universal

About this item

Transfers 1GB of Files in 0.3s: The M2 SSD enclosure features a USB 4.0 Type C port with data transfer rates up to 40Gbps. Compatible with the Thunderbolt 3/4 interface and supports UASP & TRIM protocols. The actual tested transmission rate reaches 3656.3 Mb/s.
Exclusive Heat Dissipation: The M.2 enclosure adaptor premium aluminum as the shell material. Compared with the traditional 10Gbps NVMe enclosure, the area increases by 47%. The thermal pad fits perfectly with the aluminum shell, providing stronger protection and better heat dissipation for SSD.
PWM Turbofan - This NVMe SSD enclosure with a built-in PWM Turbofan, which is quiet but powerful. Automatically adjust the fan speed according to the internal temperature to quickly discharge the heat generated by the SSD. Reduce SSD temperature to stabilize speed and extend life.
Universal Compatibility: UGREEN NVMe caddy supports NVMe SSD with interface of M Key or M&B Key. Applicable SSDs sizes are 2280/2260/2242/2230 and up to 4TB capacity. Plug and play, compatible with Windows, Mac OS, iOS, Linux and Android systems. Tip: SATA SSDs ARE NOT SUPPORTED!
Intelligence Chip: The powerful ASM2426PD chip with S.M.A.R.T. function gives you a quick overview of the status of the SSD by your computer. Combined with over-current protection and short-circuit protection to ensure the safety of your SSD and valuable data.
Compact & Portable: The NVMe case is small and easy to carry on. Whether you are having a meeting, traveling, need to work on the go or recording your life with your iPhone 15, you can quickly export data and release your creativity anytime with UGREEN NVMe Enclosure.

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This item: UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with Cooling Fan, Aluminum M.2 Enclosure with USB 4, UASP & TRIM, NVMe Caddy Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs

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Crucial P3 Plus SSD 2TB M.2 NVMe PCIe Gen4 Internal SSD, Up to 5000MB/s, Laptop & Desktop (PC) Compatible, Solid State Drive - CT2000P3PSSD801

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UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with USB4, [Lager Aluminum Shell & PWM Fan], Support UASP & TRIM, M.2 Enclosure Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs

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UGREEN M.2 NVMe and SATA SSD Enclosure, 20Gbps NVMe Enclosure with USB 3.2 Support Gen2 x 2, NVMe SSD Enclosure Support UASP & TRIM, Aluminum M.2 Caddy for M/B+M Key SSD in Size of 2230/2242/2260/2280

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Product information

Technical Details

Material

‎Aluminium

Item weight

‎0.2 Kilograms

Memory storage capacity

‎4 TB

Compatible devices

‎Laptop, Desktop, Tablet

Max number of supported devices

‎1

Data transfer rate

‎40 Megabytes Per Second

Manufacturer

‎‎Ugreen Group Limited

Product Dimensions

‎12 x 4.8 x 1.9 cm; 200 g

Item model number

‎15976-40GB

Form Factor

‎M 2

Hard Drive Size

‎4 TB

Hard Disk Description

‎Solid State Drive

Hard Drive Interface

‎Thunderbolt

Are Batteries Included

‎No

Item Weight

‎200 g

Guaranteed software updates until

‎unknown

Additional Information

ASIN

B0CLV3D3H6

Customer Reviews

4.0 511 ratings

4.0 out of 5 stars

��غ�� Rank

6,122 in Computers & Accessories (See Top 100 in Computers & Accessories)
21 in Enclosures

Date First Available

26 Oct. 2023

Warranty & Support

��غ��.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

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Product Description

UGREEN USB 4.0 M.2 NVMe SSD Enclosure (40Gbps)

47% more area compared to a 10Gbps Enclosure, provides more robust protection and better dissipation
Thanks to the thermal pad, heat generated by the SSD is quickly transferred to the aluminum case
Quickly remove the huge heat generated by SSD out of the system with PWM Turbofan.

Compatible M.2 NVMe SSDs (Partial List)

Crucial	P2/P3/P3 Plus/P5/P5 Plus Series
Samsung	990 PRO/980/980 PRO/970 EVO Plus/970 EVO/970 Pro/960 Pro/960 EVO/860 EVO Series
Western Digital	SN 850X/SN 850/SN 770/SN 750/SN 570/SN 550/SN 530/SN 520
Kingston	SNVS/A2000/KC2000/KC2500/KC3000/SA400M8
Seagate	FireCuda 530/FireCuda 520/FireCuda 510/BarraCuda 510
Intel	600P/660P/665P/760P/545S/Optane 800P/Optane H10
HP	EX950/EX900 Series
Toshiba	RC500/RD500/RC100/RC10
fanxiang	S500 Pro/S501

M.2 Enclosure Series from UGREEN

	M.2 NVMe Enclosure	M.2 NVMe Enclosure	M.2 NVMe Enclosure	M.2 NVMe Enclosure	M.2 NVMe & SATA Enclosure	M.2 NVMe & SATA Enclosure
Customer Reviews	2,788	8,481	1,702	1,984	2,176	3,328
Speed	10Gbps	10Gbps	10Gbps	10Gbps	10Gbps	10Gbps
Compatible Protocol	NVMe	NVMe	NVMe	NVMe	NVMe & SATA	NVMe & SATA
Compatible Size	2230/2242/2260/2280	2230/2242/2260/2280	2230/2242/2260/2280	2230/2242/2260/2280	2230/2242/2260/2280	2230/2242/2260/2280
Compatible Interface	M-Key & M+B Key	M-Key & M+B Key	M-Key & M+B Key	M-Key & M+B Key	M-Key & M+B Key	M-Key & M+B Key
Supplied Cable	USB C to USB C Cable	USB CC Cable & USB AC cable	USB CC Cable & USB AC cable	USB CC Cable & USB AC cable	USB CC Cable & USB AC cable	USB CC Cable & USB AC cable

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	This item UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with Cooling Fan, Aluminum M.2 Enclosure with USB 4, UASP & TRIM, NVMe Caddy Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs	Recommendations UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with USB4, [Lager Aluminum Shell & PWM Fan], Support UASP & TRIM, M.2 Enclosure Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs	�� UGREEN M.2 NVMe and SATA SSD Enclosure, [Tool-free] USB 3.2 Gen2 10Gbps NVMe Enclosure, 6Gbps SATA M.2 Caddy, UASP & TRIM, Aluminum M2 SSD Enclosure for M-Key/B+M Key in 2230/2242/2260/2280	�� UGREEN M.2 NVMe and SATA SSD Enclosure, 20Gbps NVMe Enclosure with USB 3.2 Support Gen2 x 2, NVMe SSD Enclosure Support UASP & TRIM, Aluminum M.2 Caddy for M/B+M Key SSD in Size of 2230/2242/2260/2280	�� UGREEN M.2 NVMe Enclosure, [Upgrade Heat Dissipation] 10Gbps Aluminum NVMe Caddy with USB 3.2 Gen2, NVMe SSD Enclosure Support UASP & TRIM, NVMe Case for M & M+B Key in 2230/2242/2260/2280 SSDs	�� UGREEN M.2 NVMe SSD Enclosure, Tool-Free NVMe Enclosure, 10Gbps M2 SSD Enclosure with USB 3.2 Gen2, Aluminum NVMe to USB Adapter Supports M and B&M Keys and Size in 2230/2242 /2260/2280 SSDs
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Price	-36%��£71.73 RRP: £112.74	£102.48	£30.74	£40.98	-25%��£19.26 RRP: £25.61	-26%��£17.42 Was: £23.57
Delivery	Get it as soon as Wednesday, Jan 22	Get it as soon as Wednesday, Jan 22	Get it as soon as Wednesday, Jan 22	Get it as soon as Wednesday, Jan 22	Get it as soon as Wednesday, Jan 22	Get it as soon as Wednesday, Jan 22
Customer Ratings	4.0511	3.9182	4.33,328	4.1116	4.61,702	4.58,481
Sold by	UGREEN GROUP LIMITED UK	UGREEN GROUP LIMITED UK	UGREEN GROUP LIMITED UK	UGREEN GROUP LIMITED UK	UGREEN GROUP LIMITED UK	UGREEN GROUP LIMITED UK
hardware interface	thunderbolt, pci x 4	usb c	usb3.2 gen 2	pci x 4, usb3.2 gen 2 x 2	usb3.2 gen 2, usb c, usb3.0 a	usb3.2 gen 2
brand	UGREEN	UGREEN	UGREEN	UGREEN	UGREEN	UGREEN
colour	silver	Silver	Silver	—	Silver	Silver
hardware platform	Universal	ARM	Windows 11/10/8.1/8/7/XP, Linux, Mac OS, Android, IOS	Universal	Universal	Universal
material	Aluminium	Aluminium	Aluminium	Aluminium	Aluminium	Aluminium

Looking for specific info?

What's in the box?

40Gbps M.2 NVMe Enclosure with cooling fan*1

USB C to USB C Cable*1, USB C to USB A Cable*1

External Silicone Case *1, Thermal Pad *1

User Manual *1, Screwdriver *1

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Customer reviews

511 global ratings

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Customers say

Customers are satisfied with the hard drive enclosure's performance, build quality, and overall quality. They mention it has good read and write speeds, with full 40Gbps read and write speeds on Macbook Pro but sub 10Gbps speeds on Windows Laptop. The metal construction and high-quality finish feel premium. Many customers find the design, installation process, and functionality easy to use. However, some have mixed opinions on the heat level and noise level.

AI-generated from the text of customer reviews

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Speed Build quality Quality Design Ease of installation Functionality Heat level Noise level

23 customers mention ‘Speed’19 positive4 negative

Customers appreciate the hard drive enclosure's speed. They find it has good performance in a small form factor, with quick read and write speeds. However, some customers mention it gets quite warm even when idle. The speed is perfect for handling large file transfers, video editing, or running intensive tasks.

"...this enclosure is an excellent choice for those who need top-tier performance and appreciate a premium build...." Read more

"This enclosure it is amazing,good quality, amazing performance for read and write,build quality also is very good and you have rubber cover for more..." Read more

"...Fast, if a little hot. Well made/very sturdy." Read more

"Good read/write speeds, but as others have commented, this enclosure gets hot and has problems with a steady fan speed...." Read more

15 customers mention ‘Build quality’15 positive0 negative

Customers appreciate the hard drive enclosure's build quality. They mention its metal construction with a high-quality finish. The enclosure feels premium, and is a good brand. While it isn't cheap, customers say you get what you pay for.

"...UGreen M.2 NVMe SSD Enclosure and I am very happy with its premium metal construction and high-quality finish...." Read more

"As others have mentioned, it feels and looks premium and I'm getting good speeds on a Mac Studio M1 Ultra (see screenshot)...." Read more

7 customers mention ‘Quality’7 positive0 negative

Customers appreciate the quality of the hard drive enclosure. They say it's well-made and sturdy.

"...Would thoroughly recommend this unit. Excellent product" Read more

"...However its superbly machines and well engineered, alas it won't work with one of the NMVe that it claims to be compatible with." Read more

"A lovely product - looks great, easy to install, well packaged...." Read more

6 customers mention ‘Design’6 positive0 negative

Customers like the design of the hard drive enclosure. It looks good and feels good.

"...It has a sleek, durable design that not only looks great but also feels robust enough to withstand daily use...." Read more

"...First the design is amazing, Second s really easy to install, even a clumsy person like me can do it!..." Read more

"...Looks good - not an issue for me but it does I don’t like, the heat. This is hot when in us and when idle...." Read more

"Summary: Looks good, feels good, performs amazing - IF YOU ENABLE WRITE CACHING!..." Read more

6 customers mention ‘Ease of installation’6 positive0 negative

Customers find the hard drive enclosure easy to install. They appreciate the good build quality and clear instructions.

"I like the compact size , ease of use, good build , value for money" Read more

"Very good build quality with good instructions. Wasn’t cheap compared to other products but you get what you pay for...." Read more

"...This works fast and feels very solid. It’s easy to install a drive. Really happy with this." Read more

3 customers mention ‘Functionality’3 positive0 negative

Customers like the hard drive enclosure's functionality. They mention it works well when setup correctly, and without it. The fan works and is quiet. It also works with their Time Machine.

"...It impedes air intake for the fan and reduces heat dissipation. Works fine without it." Read more

"...The fan works and is quiet Works with my Time Machine..." Read more

"Works amazingly - when setup correctly!..." Read more

19 customers mention ‘Heat level’6 positive13 negative

Customers have different views on the heat level of the hard drive enclosure. Some find it has a premium build with minimal heat and noise, with an active cooling fan that controls temperature. Others report that it gets hot when in use or idle, and the air intake for the fan reduces heat dissipation. The cooling fan's usefulness is unclear, and some feel it's a gimmick.

"...One thing to note is that it does get a bit warm during prolonged use, which is understandable given the speeds it offers...." Read more

"keeps warm but never hot, easily added 2 TB and into Thunderbolt 4 on apple M4, grat storage solution and very capable of fast speeds" Read more

"Operates well with very fast NVMEs. Runs warm when idling and hot when working. The fan is quiet, almost silent...." Read more

11 customers mention ‘Noise level’4 positive7 negative

Customers have different views on the noise level of the hard drive enclosure. Some say it's built with minimal noise considerations, while others mention the fan noise is noticeable, especially in quieter spaces. The whining when the fan spans up and clicking when it spans down are mentioned as annoying. The ramping up and down of the fan is also mentioned as annoying.

"...The built-in fan helps manage the heat, but the fan noise is noticeable, especially in quieter environments...." Read more

"...The fan is really quiet." Read more

"...As others have found, the fan pulses high and low even when not in use. I have found this a distraction in use...." Read more

"...Runs warm when idling and hot when working. The fan is quiet, almost silent...." Read more

Reviews with images

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Top reviews from United Kingdom

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Iftikhar Mumtaz
Solid Performance and Premium Build with Minor Heat and Noise Considerations
Reviewed in the United Kingdom on 20 November 2024
Verified Purchase
Just bough the UGreen M.2 NVMe SSD Enclosure and I am very happy with its premium metal construction and high-quality finish. It has a sleek, durable design that not only looks great but also feels robust enough to withstand daily use.

In terms of performance, it truly delivers! As the attached screenshot show, it achieves over 3000MB/s for both read and write speeds. This makes it perfect for handling large file transfers, video editing, or running intensive workloads.

One thing to note is that it does get a bit warm during prolonged use, which is understandable given the speeds it offers. The built-in fan helps manage the heat, but the fan noise is noticeable, especially in quieter environments. It’s not a dealbreaker for me, but something to keep in mind if silence is a priority.

Overall, this enclosure is an excellent choice for those who need top-tier performance and appreciate a premium build. Just be aware of the heat and fan noise if those factors are important to you. Highly recommended!

Read more

Iftikhar Mumtaz

Solid Performance and Premium Build with Minor Heat and Noise Considerations
Reviewed in the United Kingdom on 20 November 2024
Just bough the UGreen M.2 NVMe SSD Enclosure and I am very happy with its premium metal construction and high-quality finish. It has a sleek, durable design that not only looks great but also feels robust enough to withstand daily use.

In terms of performance, it truly delivers! As the attached screenshot show, it achieves over 3000MB/s for both read and write speeds. This makes it perfect for handling large file transfers, video editing, or running intensive workloads.

One thing to note is that it does get a bit warm during prolonged use, which is understandable given the speeds it offers. The built-in fan helps manage the heat, but the fan noise is noticeable, especially in quieter environments. It’s not a dealbreaker for me, but something to keep in mind if silence is a priority.

Overall, this enclosure is an excellent choice for those who need top-tier performance and appreciate a premium build. Just be aware of the heat and fan noise if those factors are important to you. Highly recommended!

Images in this review

2 people found this helpful

Helpful

valentin zlate
Ugreen enclosure is amazing.
Reviewed in the United Kingdom on 21 November 2024
Verified Purchase
This enclosure it is amazing,good quality, amazing performance for read and write,build quality also is very good and you have rubber cover for more safety not to drop it, only negative i can see it as it is a little bit bigger then other enclosures and heavy.

Read more

Helpful

GJ
Great speedy enclosure. Runs hot.
Reviewed in the United Kingdom on 6 November 2024
Verified Purchase
Connects to and REMAINS connected to my MacBook Pro M1 (if you know, you know). Fast, if a little hot. Well made/very sturdy.

Read more

3 people found this helpful

Helpful

Chris
Not fully sorted before sent to market - should be better
Reviewed in the United Kingdom on 1 December 2024
Verified Purchase
Good read/write speeds, but as others have commented, this enclosure gets hot and has problems with a steady fan speed.
As others have found, the fan pulses high and low even when not in use. I have found this a distraction in use.
Contacting Ugreen I have found them unhelpful in remedying the problem as every message is answered by a different person who gives contrary advice.
This isn’t a cheap enclosure and at £110 full price, should be much, much better.
Given the above I cannot recommend and would suggest you look for a better enclosure.

Read more

4 people found this helpful

Helpful

James P. Kelly
Sleek design, and appears top quality
Reviewed in the United Kingdom on 14 December 2024
Verified Purchase
keeps warm but never hot, easily added 2 TB and into Thunderbolt 4 on apple M4, grat storage solution and very capable of fast speeds

Read more

One person found this helpful

Helpful

Ed
Fast and well built, but noisy
Reviewed in the United Kingdom on 30 August 2024
Verified Purchase
As others have mentioned, it feels and looks premium and I'm getting good speeds on a Mac Studio M1 Ultra (see screenshot). However, it gets hot and the fan ramps up and is noisy. I mainly work with audio and I couldn't use this while working on audio in the same room - it's louder than my entire Mac Studio which is a bit silly. It should be the type of flat fan similar to what's in a MacBook rather than a useless normal 2cm fan. The ramping up and down of the fan is also annoying. It's just sat there after a file transfer with the fan ramping up and down, not even in use. I'm pretty sure the fan isn't helping things much, which seems like a waste. If it's going to make noise, at least make it do something.

Further, the drive sits at an angle, so only about 25% of the thermal pad is touching anything with a WD SN850X 2GB NVMe drive. Pretty silly, basic stuff. I added a bit of extra thermal pad that I had, unsure if I'm really helping anything or not.

Thankfully, I bought this for video editing, where I don't really care about noise as much. So I'll leave it unplugged unless I'm working on video.

While I'm happy with the speed, I wouldn't buy another unless it was for video or photo editing.

Read more

Ed

Fast and well built, but noisy
Reviewed in the United Kingdom on 30 August 2024
As others have mentioned, it feels and looks premium and I'm getting good speeds on a Mac Studio M1 Ultra (see screenshot). However, it gets hot and the fan ramps up and is noisy. I mainly work with audio and I couldn't use this while working on audio in the same room - it's louder than my entire Mac Studio which is a bit silly. It should be the type of flat fan similar to what's in a MacBook rather than a useless normal 2cm fan. The ramping up and down of the fan is also annoying. It's just sat there after a file transfer with the fan ramping up and down, not even in use. I'm pretty sure the fan isn't helping things much, which seems like a waste. If it's going to make noise, at least make it do something.

Further, the drive sits at an angle, so only about 25% of the thermal pad is touching anything with a WD SN850X 2GB NVMe drive. Pretty silly, basic stuff. I added a bit of extra thermal pad that I had, unsure if I'm really helping anything or not.

Thankfully, I bought this for video editing, where I don't really care about noise as much. So I'll leave it unplugged unless I'm working on video.

While I'm happy with the speed, I wouldn't buy another unless it was for video or photo editing.

Images in this review

2 people found this helpful

Helpful

Lucas
Bang of a product!!
Reviewed in the United Kingdom on 9 September 2024
Verified Purchase
I had to update my ps5 storage so i had a spare nvem, so decided to by UGREEN M.2 NVMe,
First the design is amazing,
Second s really easy to install, even a clumsy person like me can do it!
Im using a 2t nvme on it, getting speeds around 3000gb read and write!
Using in a MAC and Windows no issue at all.
And the rubbery exterior case is a nice touch protect the disc.
Just as info the case does warm up a bit, but nothing abnormal for a NVME.
The fan is really quiet.

Read more

One person found this helpful

Helpful

p.griffin
Easy set up
Reviewed in the United Kingdom on 18 November 2024
Verified Purchase
Paired this with a Samsung 990 Pro 1TB as an extension drive for an M4 Mac Mini.
Comes nicely packaged and with a Thunderbolt 4 lead and USB A to USB C lead; a screwdriver and a spare shouldered screw to retain the NVMe drive in place.
Very quick read and write speeds but be aware it does get quite warm even when it’s idle.

Read more

Helpful

Top reviews from other countries

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Joseph S.
Direct Comparison to Acasis Enclosure
Reviewed in the United States on 28 December 2024
Verified Purchase
I started off with the Acasis Thunderbolt 4 enclosure. I can confirm that the Acasis unit does indeed have a Thunderbolt 4 compatible board, and the UGreen does not. However, my testing didn't show a huge difference in speeds, at least not enough to justify the trade off in thermals.

The Acasis unit got VERY hot. The included thermal pad is not thick enough to reach the top aluminum plate, and I assume they do this as the Acasis seems to be geared more towards swapping NVME's regularly, vs the UGreen which seems to be geared toward installing once, and that NVME living in the enclosure long term (tools vs tool-less).

The operational temp for most NVME SSD's is technically 30*C-72*C (86*F-161*F). In the Acasis, even at idle, I would clock the enclosure up at 120*F, and the drive with the top plate removed at 123*F. Under a blackmagic stress test, I could easily get the drive up to 155*F and enclosure up to 162*F.

While that is within the margin of safety, and the enclosure is obviously dissipating heat as it was hotter than the drive itself, that was just too close to max temps for my comfort and I really think long term that the drive would not live very long.

Now on to the UGreen. The design is MUCH better. The fan does do something. It doesn't pass air over the SSD itself, it moves air from under the SSD and over the enclosures main board. The big difference is the UGreen has a solid copper to plate, and the included thermal pad is thick enough that on a standard NVME drive it brings the height up to the height of the rest of the enclosure (you can see it in photo 2) and the NVME makes DIRECT contact with the copper plate.

The temperature readings I took were after running blackmagic 5GB stress test for 10 minutes straight. The second photo at 92.3F is of the lower end of the NVME, the 108*F is the upper end. The memory modules themselves were in the 92-95*F area, well within my comfort zone.

Overall, I'm much more happy with this unit over the Acasis. I think the Acasis could work if you went and got a thicker thermal pad, but I love the aesthetics of the UGreen, and in my use case, this is a drive that will always live in the enclosure, so having a screw to keep it installed is actually a pro for me. I skipped the included rubber wrap as NVME's aren't going to be damaged by shock or vibration, and I don't care if the enclosure anodizing gets scratched.

Blackmagic test results done on a Macbook with thunderbolt 4 capabilities, although it is falling back to USB 3.4 due to the controller in the UGreen not supporting Thunderbolt 4. Still plenty fast for me, and way faster than any off the shelf external SSD offering.

Read more

Joseph S.

Direct Comparison to Acasis Enclosure
Reviewed in the United States on 28 December 2024
I started off with the Acasis Thunderbolt 4 enclosure. I can confirm that the Acasis unit does indeed have a Thunderbolt 4 compatible board, and the UGreen does not. However, my testing didn't show a huge difference in speeds, at least not enough to justify the trade off in thermals.

The Acasis unit got VERY hot. The included thermal pad is not thick enough to reach the top aluminum plate, and I assume they do this as the Acasis seems to be geared more towards swapping NVME's regularly, vs the UGreen which seems to be geared toward installing once, and that NVME living in the enclosure long term (tools vs tool-less).

The operational temp for most NVME SSD's is technically 30*C-72*C (86*F-161*F). In the Acasis, even at idle, I would clock the enclosure up at 120*F, and the drive with the top plate removed at 123*F. Under a blackmagic stress test, I could easily get the drive up to 155*F and enclosure up to 162*F.

While that is within the margin of safety, and the enclosure is obviously dissipating heat as it was hotter than the drive itself, that was just too close to max temps for my comfort and I really think long term that the drive would not live very long.

Now on to the UGreen. The design is MUCH better. The fan does do something. It doesn't pass air over the SSD itself, it moves air from under the SSD and over the enclosures main board. The big difference is the UGreen has a solid copper to plate, and the included thermal pad is thick enough that on a standard NVME drive it brings the height up to the height of the rest of the enclosure (you can see it in photo 2) and the NVME makes DIRECT contact with the copper plate.

The temperature readings I took were after running blackmagic 5GB stress test for 10 minutes straight. The second photo at 92.3F is of the lower end of the NVME, the 108*F is the upper end. The memory modules themselves were in the 92-95*F area, well within my comfort zone.

Overall, I'm much more happy with this unit over the Acasis. I think the Acasis could work if you went and got a thicker thermal pad, but I love the aesthetics of the UGreen, and in my use case, this is a drive that will always live in the enclosure, so having a screw to keep it installed is actually a pro for me. I skipped the included rubber wrap as NVME's aren't going to be damaged by shock or vibration, and I don't care if the enclosure anodizing gets scratched.

Blackmagic test results done on a Macbook with thunderbolt 4 capabilities, although it is falling back to USB 3.4 due to the controller in the UGreen not supporting Thunderbolt 4. Still plenty fast for me, and way faster than any off the shelf external SSD offering.

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Roberto Bigas
Gabinete excelente!!
Reviewed in Brazil on 27 December 2024
Verified Purchase
Ótimo produto, funcionando perfeitamente até o momento.

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Manuel Valle
Excelente
Reviewed in Mexico on 11 November 2024
Verified Purchase
Lo amarás, la velocidad es increíble, mejora si compras un cable de alta velocidad

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Andrii Starynets
Superb
Reviewed in Canada on 16 August 2024
Verified Purchase
One of the best today. High-quality, fast and practical. Heats up under prolonged load.

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Florent
Ugreen 40 Gbps
Reviewed in Belgium on 4 January 2025
Verified Purchase
Correspond bien à sa description vitesse de transfert élevée. Ventilateur silencieux.

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UGREEN M.2 NVMe SSD Enclosure, 40Gbps NVMe Enclosure with Cooling Fan, Aluminum M.2 Enclosure with USB 4, UASP & TRIM, NVMe Caddy Compatible with M & M+b Keys and Size in 2230/2242/2260/2280 SSDs

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NVMe Enclosure Series（Basic）

NVMe Enclosure Series （Max）

USB HUB

UGREEN 40Gbps NVMe Enclosure

NVMe Enclosure Series（Pro）

UGREEN 2.5/3.5'' SSD Enclosure

UGREEN USB to Sata Cable

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UGREEN USB 4.0 M.2 NVMe SSD Enclosure (40Gbps)

Compatible M.2 NVMe SSDs (Partial List)

M.2 Enclosure Series from UGREEN

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5.0 out of 5 stars Direct Comparison to Acasis Enclosure

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