
M.2 NGFF SATA Enclosure - USB 3.1 (10Gbps) with USB-C Cable
StarTech ID: SM21BMU31C3
This compact M.2 SSD enclosure lets you add highly portable data storage to any laptop or computer with a
USB-C™ port - such as MacBook, Chromebook Pixel™, Dell™ XPS laptops, and many others. It turns your
SATA M.2 drive into a high-speed storage solution over a USB 3.1 Gen 2 connection, at up to 10Gbps
throughput.
A truly portable solution
This slim, pocket-sized M.2 NGFF SSD enclosure has been specially designed for mobility, with a small form
factor design that fits easily into your laptop bag. Its lightweight yet durable aluminum housing helps to ensure
your drive won’t be damaged while you’re on the move.
Ventilation holes help to dissipate heat and help ensure an optimum operating temperature.
www.startech.com
1 800 265 1844

Maximize the performance of your M.2 SSD
Leverage the speed of your M.2 NGFF SATA drive with this external enclosure. It delivers USB 3.1 Gen 2 data
transfer speeds up to 10Gbps as well as UASP support, so you can achieve higher transfer speeds when you
connect it to a UASP-enabled host computer.
The enclosure works with tablets, laptops and desktop computers and is compatible with hosts equipped with
Thunderbolt 3 USB-C ports.
Broad compatibility
The enclosure is compatible with all of the common M.2 SSDs, and enables you to mount multiple drive lengths,
including: 30mm (2230), 42mm (2242), 60mm (2260), and 80mm (2280).
The SM21BMU31C3 is backed by a 2-year StarTech.com warranty and free lifetime technical support.
Applications
Mobile professionals can use their M.2 SATA SSD to gain high-speed data access for their USB-C
enabled laptop or computer
Repurpose an M.2 SATA SSD as a USB 3.1 Gen 2 external drive
Transfer files faster by using a high-performance SATA M.2 SSD as your external drive
Features
Leverage your SATA M.2 SSD to add fast external storage to your USB-C enabled host (USB-C cable
included)
Supports USB 3.1 Gen 2 (10Gbps)
Compatible with Thunderbolt 3 USB-C port
Solid aluminum housing with ventilation for optimum heat dissipation
Broad compatibility with support for the most common M.2 SATA SSDs (30mm, 42mm, 60mm, 80mm)
Supports SATA I/II/III (1.5, 3, 6Gbps)
www.startech.com
1 800 265 1844

Technical Specifications
Warranty 2 Years
Bus Type USB 3.1 Gen 2
Chipset ID ASMedia - ASM1351
Compatible Drive Types (Type and Rate) M.2 (NGFF; B-Key)
Drive Installation Fixed
Interface USB 3.1 Gen 2
Number of Drives 1
General Specifications Not compatible with PCI-Express M.2 SSDs
Maximum Data Transfer Rate 10 Gbps
MTBF 1,000,000 hours
Type and Rate USB 3.1 Gen 2 - 10 Gbit/s
Type and Rate SATA III (6 Gbps)
UASP Support Yes
Drive Connectors 1 - M.2 (NGFF; B-Key) Receptacle
Host Connectors 1 - USB 3.1 USB Type Micro-B (10 pin; Gen 2; 10 Gbps) Female
OS Compatibility OS independent; No software or drivers required
LED Indicators 1 - Power & Activity
Power Source USB-Powered
Humidity Operation Humidity: 10% ~ 90% RH
Storage Humidity: 5% ~ 95% RH
Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -10°C to 65°C (14°F to 149°F)
Color Black & Silver
Enclosure Type Aluminum
Max Drive Height 3.1 in [80 mm]
Product Height 0.5 in [13 mm]
Product Length 3.9 in [99 mm]
Product Weight 1.7 oz [48 g]
Product Width 1.7 in [42 mm]
Shipping (Package) Weight 4.7 oz [132 g]
Included in Package 1 - M.2 NGFF SATA Enclosure - USB 3.1
Included in Package 1 - USB C to Micro B cable
Included in Package 1 - M.2 screw kit
Included in Package 1 - screwdriver
www.startech.com
1 800 265 1844

Included in Package 1 - quick install guide
Certifications, Reports and Compatibility
www.startech.com
1 800 265 1844