Features: Support Hard Disk: for M2 Sata (B-KEY/B&M-KEY) hdds Features: support Dual-bay sync- reading and one click offline copy Support one-to-one hard disk offline copy; data transmission functions Operating system: for WindowsXP/7/8/10, Mac-OS systems- Vertical in-line designwide compatible with-m.2 sata hard disk 2230 2242 2260 2280 22110 Specifications: Item: Hard Drive Disk Duplicator Size：approx 8.0x7.7x2.0CM/3.15x3.03x0.79in Material: ABS Feature: Dual-Drawer Support Hard Disk: for M2 Sata (B-KEY/B&M-KEY) hdds Package Includes: 1PC HDD- Duplicator 1PC HDD- Storage Box 1PC Data Cable 1PC BT-Adapter 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.