Rosewill 2.5-Inch and 3.5-Inch USB 3.0 Hard Drive Docking RX-DU300 Black Plug and play Transfer rates up to 4.8 Gbps with USB 3.0 Compliant with USB 3.0 Backward Compatible with USB 2.0 & 1.1 Hot-Swap capability for rapid multi HDDs LED indicator for power on and HDD access Maximum Capacity (per Bay): Up to 3TB (WinXP Not supported 3TB) Size: 2.5" & 3.5"