D-Link Adapter 4xA-port 1xB-Port USB. Data transfer rate: 12 Mbit/s. LED indicators: Port status, power. Interface: USB, Dimensions (WxDxH): 102 x 74 x 26 mm, Power requirements: AC 110/220 V ± 10% ( 50/60 Hz ). Minimum system requirements: Microsoft Windows 95/98, Apple MacOS