# UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan

UGREEN D703 is a 40Gbps M.2 NVMe SSD enclosure with an aluminium body and built-in fan. Its listed 8 TB capacity and 2280-drive support suit a single compatible NVMe SSD, but the advertised data rate depends on the SSD and host connection.

- [Original product page](https://bargainpostbox.co.uk/product/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [View offer](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: UGREEN
- Model: D703
- Category: Computers > Computer Accessories > Docks & Hubs
- Price: 61.49 GBP
- Previous price: 79.99 GBP
- Discount: 23%
- Price checked: 2026-11-14T19:26:32.038Z
- Rating: 4 / 5
- Reviews: 205

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing states up to 40Gbps transfer and reports lab read/write results of 3,169 MB/s and 2,816 MB/s. Actual throughput can depend on the SSD and connected host.
- The four-part cooling arrangement combines the aluminium body, fan, vents and thermal pad. Its stated surface-temperature figure is a manufacturer claim, not an independent measurement.
- Supports M Key and M+B Key NVMe drives in 2280 size, up to the listed 8 TB capacity.
- The listing says it works with Windows, Mac OS and Linux without requiring drivers.

## Pros

- Fan and thermal pad are specified alongside an aluminium enclosure for heat management during sustained transfers.
- Dual-chip design is claimed to reduce power consumption by up to 33% compared with standard single-chip designs.
- Support for Thunderbolt and USB standards is claimed, with listed compatibility spanning Windows, Mac OS and Linux.

## Cons

- The enclosure supports 2280 NVMe drives only, so other M.2 lengths and SATA NGFF drives are unsuitable.
- The listing says PCIe Gen 5 SSDs are not compatible.

## Specifications

### Identity
- Brand: UGREEN
- Model: D703
### Connection and speed
- Hardware interface: Thunderbolt 3, Thunderbolt 4
- Connectivity technology: USB, Thunderbolt
- Advertised data transfer rate: 40 Gigabits Per Second
### Drive and compatibility
- Maximum listed storage capacity: 8 TB
- Supported SSD types: M Key and M+B Key NVMe solid-state drives
- Supported SSD size: 2280
- Compatible devices listed: MacBook M1 M2 M3 M4 Pro/Max
### Materials and protection
- Material listed: Aluminium
- Colour: silver
### Cooling and chips
- Chipset listed: JHL7440 chip & RTL9210B chip
- Cooling components: all aluminum body, turbo fan, dual vents, and a built-in thermal pad
- Claimed surface temperature: 48.3°C \(at 25°C ambient temperature\)
### Operating system support
- Operating systems: Windows, Mac OS, and Linux systems
### Other details
- Manufacturer: Ugreen Group Limited
- Country of origin: China
- Warranty listed: 2 year manufacturer

## Before you buy

- Fit an M Key or M+B Key 2280 NVMe SSD, not a SATA NGFF drive. The listing excludes PCIe Gen 5 SSDs. The listed 40Gbps is a connection rate, while the separate lab read/write figures are manufacturer claims and not assured results for every SSD or host. Confirm your computer's port and drive compatibility before purchase.

## In the box

- UGREEN 40Gbps M.2 NVMe SSD enclosure (Included): The explicit box contents list names the enclosure only.

## A good fit for

- Owners of a compatible 2280 NVMe SSD seeking a fan-cooled external enclosure for large file transfers.
- Mac, Windows or Linux users whose host supports a compatible Thunderbolt or USB connection.

## Less suited to

- Anyone needing a SATA M.2 enclosure, support for non-2280 SSD sizes or compatibility with PCIe Gen 5 SSDs.
- Buyers who need guaranteed transfer speeds or a consistently quiet fan. Customer feedback reports mixed experiences on both speed and fan noise.

## Customer feedback

Customer feedback describes the enclosure as well-built and compact, with positive reports about performance and cooling. Experiences with speed are mixed, including reports that it does not reach advertised speeds. Fan noise and durability opinions also vary. These differences matter if sustained throughput, quiet operation or long-term reliability is a priority. The aggregate ratings are mixed rather than uniformly positive.
- Positive themes: Customers describe the build quality and compact size positively.
- Positive themes: Customers report positive experiences with performance and cooling.
- Mixed feedback: Speed reports vary, with some customers saying it does not reach advertised speeds.
- Mixed feedback: Customers disagree about how loud the fan is.
- Mixed feedback: Durability feedback is mixed.

## Frequently asked questions

### Which SSDs fit the UGREEN D703?
The listing specifies M Key and M+B Key NVMe SSDs in 2280 size, up to 8 TB. It says SATA NGFF drives and PCIe Gen 5 SSDs are not supported.
### Does the D703 guarantee 40Gbps file transfers?
No. The listing gives 40Gbps as the transfer rate and separately reports lab read/write figures. Actual speed depends on the installed SSD and host connection.
### Does it work with Mac, Windows and Linux?
The listing claims compatibility with Windows, Mac OS and Linux without driver installation. Check that your host has a compatible connection.
### Is an SSD included?
The explicit box contents list names the enclosure only. It does not list an SSD.

## Alternative options

- [UGREEN 20Gbps Dual-Bay M.2 NVMe Enclosure, SSD Cloner Dock, Offline Clone \| Aluminum, UASP/TRIM, Supports M/B+M Key, 2230/2242/2260/2280, USB3.2 Gen2, USB3.2 Gen1, USB2.0, for PC/Mac/Laptop](https://bargainpostbox.co.uk/visit/ugreen-85043uk-dual-bay-nvme-enclosure-cloner)
- [fanxiang M.2 NVMe SSD Enclosure, USB 3.2 Gen 2 10Gbps External SSD Case \| M-Key & B+M Key, 2230/2242/2260/2280, Up to 8TB, UASP, Aluminium Housing with Silicone Sleeve, for PC, Mac, PS5, Xbox](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [UGREEN 10Gbps M.2 NVMe & SATA Enclosure, USB 3.2 Gen 2 SSD Enclosure \| Tool-Free NVMe External Caddy, Aluminum PCIe NVMe Adapter, NVMe to USB Adapter for M and M&B Key in 2230/2242/2260/2280 SSDs](https://bargainpostbox.co.uk/visit/ugreen-15813-m2-nvme-sata-ssd-enclosure)
- [iDsonix M.2 \[NVMe & SATA\] SSD Enclosure Adapter\[Tool Free\]\[Aluminum\], NVMe to USB 3.2 Gen2 10Gbps, M.2 to USB C&A Supports M-Key/B+M Key, with UASP Trim for 2230/2242/2260/2280 SSD](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [40Gbps M.2 NVMe Enclosure, Tool-Free Aluminum External M.2 SSD Enclosure Compatible for Thunderbolt 3/4/5, USB4, UASP & TRIM, NVMe SSD Enclosure Support Size 2280 M&B+M-Key PCIe SSDs, Up to 2800MB/s](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [ORICO 40Gbps M.2 NVMe SSD Enclosure with Turbo Fan Cooling, Aluminum SSD Enclosure & Clear PC Cover for 2230/2242/2260/2280 NVMe SSDs up to 8TB, USB4/Thunderbolt 4 Compatible for Mac & PC](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [UGREEN M.2 NVMe SSD Enclosure, 10Gbps Aluminum NVMe Enclosure, Tool-Free \| M.2 SSD Caddy with USB 3.2 Gen2, Supports UASP & TRIM for M and M&B Keys Size in 2230/2242 /2260/2280 SSDs](https://bargainpostbox.co.uk/visit/ugreen-m2-nvme-ssd-enclosure-usb-3-2-gen-2)
- [ANYOYO 40Gbps M.2 NVMe SSD Enclosure for Thunderbolt 4/USB4, Up to 3400MB/s \| Fanless Aluminium Case, Dual-Sided Heat Sink for M5/M4 MacBook Pro, MacBook Air, Mac mini, Windows PC \(SSD Not Included\)](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [Yubico - YubiKey 5C NFC - Two Factor Authentication USB and NFC Security Key, Fits USB-C Ports and Works with Supported NFC Mobile Devices - Protect Your Online Accounts with More Than a Password](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [ORICO NVMe M.2 SSD Enclosure 40Gbps USB-C PCIe3.0x4 Thunderbolt Adapter 2800MB/s for NVMe M-Key SSD 2280, Aluminum External Hard Drive Enclosure Support Thunderbolt3/4 USB3.2/3.1/3.0/Type C-M234SV](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [iDsonix M.2 NVMe PCIe SSD Enclosure Adapter\[Tool Free\]\[Aluminum\], USB C 3.2 Gen 2 10Gbps NVMe PCIe External Enclosure, Supports M-Key/B+M Key, with UASP Trim for 2230/2242/2260/2280 SSD](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)
- [UGREEN 10Gbps M.2 NVMe Enclosure USB C 3.2 Gen 2 for M and M&B Key \| Aluminum, PCIe Adapter Solid State Drive External Reader , Support UASP & Trim in Size 2230/2242/2260/2280](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)

## Add-ons

- [Samsung 990 PRO NVMe M.2 SSD, 2 TB, PCIe 4.0, 7,450 MB/s read, 6,900 MB/s write, Internal SSD, For gaming and video editing, MZ-V9P2T0BW](https://bargainpostbox.co.uk/visit/ugreen-d703-40gbps-m2-nvme-ssd-enclosure-fan)

## Images

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 1](https://bargainpostbox.co.uk/i/YJSdEDWQUN9o1G6V9QNxN_vb7QPe6kzLsxmsxRSeOpL-vvXKkiwSceBtEAgEXPSn4tZyyS6bL4vs6ptiX9B8auLprHxu2kd8QpV9sRPwphsCeKWilBepKx37.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 2](https://bargainpostbox.co.uk/i/m3RAl-USEFKQ0N1pugJyO2CLfye7QqXNhvw8hxcnJ1d_AhW7RwU9TJMoD7S475MlPw76Eu5W4IWJ8VkMxkjngLC_xt2EcvbP69s4RghwB_WwpyVLjlXe8EZ5.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 3](https://bargainpostbox.co.uk/i/frstnJqh1BSy6snx-MJNHr9WmJslA5KRFInUUHNjgG57PXIJGuV4UDCtO6n3Puuv4cu-odujhdp3u5swtRktAYFuc6ubVpbu0zXBGWaGRBxypyAfaGoHylal.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 4](https://bargainpostbox.co.uk/i/pIzkIZ33K3kK3cksFghOWkdeb1V9m0bekX4EPkEX3XPZKJFLgbn6TAQef7xISmoyHfcwGcgBFQMZ6JcD_3Kifcdg_dx9Q6v4l2haNajSOKf19_OZKxR3kfC5.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 5](https://bargainpostbox.co.uk/i/-abaoJt2i7Fb2ljhnqCkKDKRczmvvXUDkIOB-TKG9uu1vrW8sosLF1KWJpiV7RC8xm3py21Kxkd-TKJ7jyfcKzq_0yQbla17mhTJXbbIZr09YRiDAzlCU01B.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 6](https://bargainpostbox.co.uk/i/WZPCzURsPpCRA_aUI-vcgqFXA7oT4NvZ5sohQPm5H6lo8BhiZ05tBGFxtRF-NTjvqVvFS52P9XjQY3a_zFvTLMfuyObZm2Fpl0_A1UgoMuJeMubhUQT2UxX6.jpg)

![UGREEN D703 40Gbps M.2 NVMe SSD Enclosure with Fan — 7](https://bargainpostbox.co.uk/i/TOoDWZKkIJCMt-m2ioCodyR0s_8-vx4nssgeBCoWCRpdmAAIuM7EF-xRJYgNFfrr0L5xliL9VQEQp1Gtrks9-XDvRK7j2TZO3-sGa0hQwf3JBuuP9LxNREsD.jpg)