... , Supports USB 2.0 TO 2 SATA ports ,ESATA TO 2 SATA ports,supports mainstream SATA Harddisk , compatible with 2.5 inch ,3.5 inch harddisks ... supports SATA generation 1 transfer rate of 1.5Gb/s,and SATA generation 2 transfer rate ... need. 4)No MOQ require ,can start from small quantity 2 bay 2.5' &3.5' SATA docking with card reader and HUB