MCL Mini Hub 4 Ports USB 2.0. Data transfer rate: 480 Mbit/s. Interface: USB 2.0, Dimensions (WxDxH): 60 x 46 x 12 mm, Package dimensions (WxDxH): 194 x 121 x 30 mm. Compatible operating systems: Win 98/2000/Me/XP/Vista Mac 8.5 +