USB Multi-function docking station supports 2.5" AND 3.5" hard drives. USB 3.0 to SATA III. Built-in USB 2.0 card reader, can read SD/TF up to 128G. Supported operating systems:Win XP, Vista, Win 7/8/10, Mac os & Linux. Two USB 3.0 interface expansion can be connected to mouse,keyboard,USB drive,camera,printer,mobile hard drive,and other standard USB equipment.This item is brand spanking new,I never used it, so no marks,scratches or dents!! CIB with instruction booklet.