SSD enclosure GrauGear G-M2U4-40G-F — M.2, 1 drive, USB4 Gen4, 40 Gbit/s, aluminium, black

The GRAUGEAR M.2 NVMe USB 4.0 enclosure (model G-M2U4-40G-F) is a single-bay external SSD enclosure in a black aluminium housing. It supports one M.2 NVMe SSD in M-Key 2280 format and connects via USB4 Gen4, allowing data transfer rates up to 40 Gbit/s. The enclosure combines passive aluminium dissipation with two copper heat pipes and an integrated low-noise 30 mm fan to maintain optimal SSD temperatures during sustained high-speed transfers.

Advantages

The aluminium body and copper heat pipes provide efficient passive cooling while the built-in active fan prevents thermal throttling under heavy workloads. USB4 Gen4 connectivity enables up to 40 Gbit/s throughput for fast file transfers and backups. The compact single-drive design is compatible with common M.2 NVMe 2280 modules and includes activity and power LEDs for simple status monitoring.

Suitable for

• External high-speed storage for video editing and large file transfers
• Portable backups and system image storage
• Expanding laptop or desktop storage with an NVMe M.2 SSD

Key specifications

• Interface: USB4 Gen4 (up to 40 Gbit/s)
• Drive type supported: M.2 NVMe SSD, M-Key, size 2280
• Number of drives: 1
• Cooling: aluminium housing, two copper heat pipes, 30 mm low-noise fan
• Indicators: power and access LEDs
• Material: aluminium
• Colour: black

How to use

Install a compatible M.2 NVMe 2280 SSD into the M-Key slot following the enclosure's mounting instructions, secure the drive, then connect the enclosure to a host computer using a USB4-compatible cable and port. The drive is recognized by Windows and macOS as external storage; no additional drivers are typically required. Monitor the LED indicators for power and access activity and allow the fan and heat-pipe system to manage temperature during transfers.

Recommendations

For sustained heavy workloads (large backups or continuous file transfers), ensure the enclosure is placed in a well-ventilated area to maximize cooling effectiveness. Use a USB4-capable port and cable to achieve the advertised 40 Gbit/s transfer rates, and verify your M.2 SSD is NVMe M-Key 2280 for compatibility.