1. One-click Offline Copy: M.2SATA Hard Disk Copier can copy data from one hard disk to another without connecting a computer. 2. Dual Drawer Reading: SSD Reader dual drawer reading, more efficient for transferring copies. 3. Compatible with Multi-specification M.2 Hard Disk: SSD Hard Drive Duplicator vertical in-line design, compatible with multi-specification M.2 hard disk, no size limit. 4. Wide Application: SSD Docking Station can be used for office storage, playing large games, and connecting routers. 5. LED Indicators: Hard Disk Box has LED indicators, the copy progress is clear at a glance, and the design is considerate. Name:M.2 Duplicator Model Number:Docking Station Support hard disk:M.2 (B-KEY/-KEY) Product drawer:double Bay Product function:One drive one hard disk offline copy; data transmission :WindowsXP/7/8/10, for MacOS Colour:Black & Gray Material:ABS Size:8x7.7x2CM/3.1x3.0x0.7in Package Contents: 2 x Dual-bay M.2 copier 2 x Type-C data cable 2 x Hard disk storage box 2 x Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.