Features: brand new and high quality External expansion read-write backup, convert to double-disk for M.2 hard disk in seconds. Plug and for play, no driver needed, hot-swapping, easy and quick, aluminum for case makes it durable and resistant soiling. Suitable for NGFF-compatible protocol hard disk; Super speed USB 3.1 interfaces with type c data transfer rates up to10Gbps. Support system disk copying, big data migration backup Variety of applicable hard disk size specifications: 2242 2260 2280 22110. Specifications: Material：Aluminum Alloy Size：approx 10x7x1/3.93x2.75x0.39in Applicable: for M.2 SATA 22110/2242/2260/2280 SSD Output interface:USB3.1 Capacity:Support 2TB+2TB Support：Offline Clone Online Read-Write Expansion Package Includes: 1 x SSD Base Enclosure note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.