StarTech.com M.2 SSD Enclosure for M.2 SATA Drives - USB 3.1 (10Gbps) - USB-C
Review the specifications, then ask our team for current pricing and availability.
Product photos load online
StarTech M.2 SSD Enclosure for M.2 SATA Drives - USB 3.1 G - USB-C - Portable M.2 External Enclosure (SM21BMU31CI3)
Part SM21BMU31CI3 · UPC 065030883047
Catalog availability is a file snapshot. Call to confirm stock and pricing before ordering.
Add to cart Continue browsing- ADD EXTERNAL STORAGE TO YOUR USB-C LAPTOP: Turn your M.2 NGFF SATA drive into high performance external storage with this M.2 SSD enclosure; Connect it to your MacBook, Dell XPS or other USB Type-C device. Compatible with Thunderbolt 3 USB-C ports
- CONNECT TO YOUR M.2 SATA SSD OVER USB 3.2 GEN 2: Experience full SATA III performance from your M.2 SATA SSD over a USB 3.2 Gen 2 (10 Gbps) host connection; Backward compatible with SATA I/II and USB 3.0; Includes mounting screws and screwdriver
- TRULY PORTABLE: The compact design (4x2x1.5in/ 11x5x1.4 cm) makes this M.2 SATA hard drive enclosure easily portable; The integrated USB-C cable (6in/15.2cm), means you're always ready to plug it in, without having to remember to bring along a cable
- DURABLE ALUMINUM: With this robust SATA M.2 external enclosure, your drive is encased in an aluminum and plastic housing; The built-in ventilation holes aid in heat dissipation to provide an optimum operating temperature for your drive
- BROAD M.2 SATA SSD COMPATIBILITY: The M.2 SATA NGFF SSD enclosure supports common M.2 SATA SSDs (B Key / B+M Key) and multiple drive lengths including: 42 mm (2242), 60 mm (2260), and 80 mm (2280); NOTE: Not compatible with M.2 NVMe or AHCI PCI Express SSDs
About this product
Portable M.2 SATA to USB Adapter | Attached USB-C Cable
Add high-performance external data storage to your USB-C laptop, tablet or desktop computer, with this SATA M.2 SSD enclosure. It lets you use your SATA M.2 drive as an ultra-fast external storage solution over a USB 3.1 Gen 2 connection. It’s ideal for your MacBook, Dell XPS, Chromebook Pixel or other USB Type-C device.
Truly Portable
The compact M.2 SATA to USB adapter is easily portable and gives you high-speed access to your data, wherever you go. The integrated USB-C cable (6"/15.2 cm), means you’re always ready to plug it in, without having to remember to bring along a cable.
Durable Aluminum Design
The sturdy aluminum and plastic enclosure encases your M.2 SATA SSD and features built-in ventilation that improve heat dissipation to help keep your drive at a suitable operating temperature.
Use your M.2 SATA Drive for External Storage
Easily use your M.2 SATA drive as external data storage. This M.2 NGFF SSD enclosure provides a simple connection to your M.2 SATA SSD over USB 3.1 Gen 2. You can transfer files quickly, without bottlenecks, using a SATA M.2 SSD as your external drive.
Broad Compatibility
The enclosure supports common M.2 SATA SSDs and multiple drive lengths, including: 42 mm (2242), 60 mm (2260), and 80 mm (2280). The USB to M.2 SATA enclosure works with USB-C host devices and is also compatible with Thunderbolt 3 USB-C ports.
SM21BMU31CI3 is backed by a 2-year StarTech.com warranty and free lifetime technical support.
Manufacturer warranty information
2 Years
Storage
- Number of storage drives supported
- 1
- Storage drive size
- M.2
- Supported storage drive interfaces
- M.2
Ports & interfaces
- USB connectivity
- Yes
- USB version
- 3.2 Gen 2 (3.1 Gen 2)
- USB connector type
- USB Type-C
- USB connector gender
- Male
- Integrated USB cable
- Yes
Design
- Product type
- SSD enclosure
- Product colour
- Black
- Material
- Aluminium
- LED indicators
- Activity, Power
- Certification
- REACH, CE, FCC
Performance
- Data transfer rate
- 6 Gbit/s
- Chipset
- JMicron - JMS580
- UASP support
- Yes
- Mean time between failures (MTBF)
- 50000 h
- Plug and Play
- Yes
Power
- Power source type
- USB
Operational conditions
- Operating temperature (T-T)
- 5 - 35 °C
- Storage temperature (T-T)
- -20 - 50 °C
- Operating relative humidity (H-H)
- 20 - 80%
Weight & dimensions
- Width
- 110 mm
- Depth
- 50 mm
- Height
- 14 mm
- Weight
- 95 g
- Cable length
- 0.145 m
- Package width
- 142 mm
- Package depth
- 170 mm
- Package height
- 30 mm
- Package weight
- 110 g
Packaging content
- Screws included
- Yes
- Screwdriver included
- Yes
- Manual
- Yes
Technical details
- Compliance certificates
- RoHS
Logistics data
- Harmonized System (HS) code
- 84733080
- Master (outer) case width
- 335 mm
- Master (outer) case length
- 360 mm
- Master (outer) case height
- 320 mm
- Products per master (outer) case
- 40 pc(s)
Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License
