easyNova EX-25SU. Size: 63.5 mm (2.5 "), Hard drive interface: Serial ATA. Interface: USB, SATA, SATA II. Compatible operating systems: Windows 98/ME/2000/XP/Vista Mac. Colour of product: Black, Silver. Dimensions (WxDxH): 83.5 x 134 x 15.8 mm