Hubceuo Name:M.2 SATA Duplicator Model Number:Docking Station Support hard disk:M.2 SATA (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: 1 x Dual-bay M.2 SATA copier 1 x Type-C data cable 1 x Hard disk storage box 1 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.