M.2 SSD to USB 3.0 Enclosure The NexStar SX M.2 SSD to USB 3.0 Enclosure offers the flexibility to install various sizes M.2 (NGFF) SSD. This enclosure is very small and portable. Once install it can be easily connected to any USB 3.0 port for Super-fast storage. Its unique design allows for different size M.2 card like 22x42mm, 22x60mm, and 22x80mm in length to be fitted into the enclosure easily. This ultra-portable enclosure will give you the performance and easy connection that you need.