
UGREEN 2.5-Inch SATA External Hard Drive Enclosure | 70498
The UGREEN CM300 (#70498) is an aluminium enclosure that turns a 2.5-inch SATA hard drive or SSD into a portable drive. It has a USB-C port, reaches the full SATA III speed of 6Gbps with UASP, takes drives up to 6TB and 9.5 mm thick, and comes with a 50 cm USB-A to USB-C cable.
USB-C port, SATA III 6Gbps: The enclosure has a USB-C 3.2 Gen 2 port, so the connection is faster than the drive itself and a SATA III drive can run at up to 6Gbps. UASP support speeds up reading and writing on computers that support it.

ASM235CM chip with ESD protection: Inside is an ASM235CM controller with built-in protection against electrostatic discharge of up to 4kV. It also puts the drive to sleep after 3 minutes without activity, which saves power.

Aluminium body: The gray aluminium shell is slim and sturdy, and silicone feet on the bottom stop it from sliding on the desk. It measures 133 x 82 x 15 mm, so it fits easily in a laptop bag.
Tool-free installation: Slide the back cover out, insert the drive, close the cover and connect it to your computer. No screws, tools, drivers or external power are needed.
Who it's for / Works with
Works with Windows, macOS and Linux computers, and can also be used with TVs, routers and game consoles.
Good to know
- The box includes a USB-A to USB-C cable only.
- The 6Gbps figure is the limit of the SATA III interface; real speed depends on the drive.
- The hard drive or SSD is not included.
Technical Specifications
| Model | CM300 |
| Item No. | 70498 |
| Port on Enclosure | USB-C (USB 3.2 Gen 2) |
| Drive Interface | SATA III / II / I |
| Transfer Speed | Up to 6Gbps (SATA III), UASP |
| Chipset | ASM235CM |
| Supported Drives | 2.5-inch HDD and SSD, up to 9.5 mm thick |
| Max Capacity | 6TB |
| Cable | USB-A to USB-C, 50 cm (included) |
| Auto Sleep | After 3 minutes idle |
| ESD Protection | Up to 4kV |
| Material | Aluminium |
| Color | Gray |
| Dimensions | 133 x 82 x 15 mm |
| Operating Systems | Windows, macOS, Linux |
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