1 / 7UGREEN 45789 80Gbps M.2 NVMe SSD Enclosure
UGREEN 45789 is an M.2 NVMe SSD enclosure listed for Thunderbolt 5 and Thunderbolt 4 connections, with a claimed 80Gbps bandwidth and support for up to 8TB. Its fit is selective: it supports 2280 M.2 NVMe drives with M Key or M+B Key, not SATA NGFF or PCIe Gen 5 SSDs, and is incompatible with Thunderbolt 3 and USB 3.x/2.0.
At a glance
- The listing claims up to 80Gbps bandwidth and read/write speeds up to 7000 MB/s. These are stated limits, not guaranteed speeds with every SSD or host.
- A built-in fan is claimed to switch on at an internal temperature of 40°C, with its speed adjusted to temperature.
- Designed for 2280 M.2 NVMe drives with M Key or M+B Key and a maximum stated capacity of 8TB.
- The listing excludes SATA NGFF drives, PCIe Gen 5 SSDs, Thunderbolt 3 and USB 3.x/2.0 connections.
Often bought together
Pros and cons
Pros
- The stated 8TB capacity and compatibility with M.2 NVMe drives give suitable owners a route to use a high-capacity drive as external storage.
- The temperature-triggered fan is intended to manage heat during sustained transfers without running continuously below its stated threshold.
- Listed compatibility includes Linux, Mac and Windows.
Cons
- The supported drive and connection types are narrow. It will not suit SATA NGFF or PCIe Gen 5 SSDs, or Thunderbolt 3 and USB 3.x/2.0 hosts.
- The 80Gbps bandwidth and up to 7000 MB/s speed are listing claims. Actual transfer performance depends on the SSD and compatible host connection.
Technical specifications
17 specifications| Brand | UGREEN |
|---|---|
| Model | 45789 |
| Hardware interface | Thunderbolt |
|---|---|
| Connectivity technology | Thunderbolt, USB |
| Compatible operating systems | Linux, Mac, Windows |
| Supported SSD type | M.2 NVMe SSDs |
| Supported key types | M Key and M+B Key |
| Supported drive size | 2280 |
| Supported device quantity | 1 |
| Listing connection claim | Thunderbolt 5 and USB4 V2.0, backward compatible with Thunderbolt 4 and USB4 V1.0 |
| Listed data transfer rate | 80 Gigabits Per Second |
|---|---|
| Claimed maximum read and write speed | up to 7000 MB/s |
| Maximum supported SSD capacity | 8TB |
| Storage listed | 8 TB |
| Colour | Silver |
|---|---|
| Material listed | Aluminium |
| Weight listed | 188.8 Grams |
What to know before buying
- Confirm the SSD is a 2280 NVMe model with M Key or M+B Key, and is not PCIe Gen 5 or SATA NGFF. The listing excludes Thunderbolt 3 and USB 3.x/2.0. It also warns that some Thunderbolt 4 devices may have compatibility issues with Thunderbolt 5 cables, suggesting an up-to-date macOS version or a Thunderbolt 4 cable.
Listing details to confirm
The listing details are inconsistent or unconfirmed: it claims 80Gbps bandwidth and up to 7000 MB/s, but supplies no testing conditions to connect those figures. The 8TB limit is stated both as maximum supported capacity and as storage listed, which does not establish that an SSD is included. The silicone case and M.2-to-USB adapter are mentioned in a product claim but absent from the explicit contents list, so their inclusion is uncertain. Customer feedback also reports mixed experiences with heat, fan noise and SSD compatibility.
What’s in the box
- NVMe SSD enclosureIncluded
- Silicone caseCheck selected pack
- M.2-to-USB adapterCheck selected pack
Check which accessories are included in your selected pack before buying.
Who is it for?
A good fit for
- Owners of compatible 2280 M.2 NVMe drives who want an external enclosure for a Thunderbolt 5/4 or listed USB4 setup.
- Users transferring large files who can pair the enclosure with a compatible host and SSD and want the listed active cooling.
Less suited to
- Anyone using SATA NGFF, PCIe Gen 5, Thunderbolt 3, USB 3.x or USB 2.0 equipment.
- Buyers who need a confirmed included silicone case or M.2-to-USB adapter.
- People who need assured quiet operation, as customer feedback on fan noise is mixed.

Customer reviews on Amazon
- 5 stars
62% 62% - 4 stars
9% 9% - 3 stars
9% 9% - 2 stars
2% 2% - 1 star
18% 18%
Customer feedback highlights perceived fast transfers, build quality and value for money. Reports are mixed on heat management, fan noise and compatibility, while some describe the enclosure as very small. In practical terms, those concerns matter most during sustained transfers, in noise-sensitive settings, and when checking whether a particular SSD is supported. The listing’s 80Gbps and up to 7000 MB/s figures are claims, not proof that every customer setup will reach them.
Positive themes
- Customers praise perceived transfer speed and build quality.
- Some customers consider it good value for money.
Negative themes
- Some customers describe the enclosure as very small.
Mixed feedback
- Feedback differs on whether the thermal pad manages drive heat effectively.
- Customers disagree about how noisy the fan is.
- Some customers report compatibility problems with their SSDs.
Frequently asked questions
Which SSDs fit this UGREEN enclosure?
The listing specifies 2280 M.2 NVMe drives with M Key or M+B Key, up to 8TB. It excludes SATA NGFF and PCIe Gen 5 SSDs.
Can I use it with a USB 3.x or Thunderbolt 3 port?
No. The listing says it is not compatible with Thunderbolt 3 or USB 3.x/2.0. It names Thunderbolt 5, Thunderbolt 4 and USB4 versions as supported connections.
Does the enclosure include the SSD?
The explicit box contents list names only the NVMe SSD enclosure. The 8TB figure is a supported-capacity claim, not confirmation that an SSD is supplied.
Does the fan run all the time?
The listing says the built-in fan turns on when the internal temperature reaches 40°C and adjusts its speed according to temperature. Customer feedback about fan noise and heat is mixed.

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