Akasa AK-CR-02BK. Interface type: USB 2.0/1.1/1.0. Data transfer rate: 480 Mbit/s. Colour of product: Black. Dimensions (WxDxH): 90 x 60 x 17 mm. Power supply type: DC, Compatible operating systems: Windows 2000, XP, Vista, 7 Mac OS 9, OS X