Capacity 500 gb 1 tb form factor 25ldquo 635 cm colour anthracite silver blue material aluminium led display yes interface super speed usb port 30 maximum data transfer rate reading 8500 mbs 570 x writing 7500 mbs 503 x rpm cache 5400 rpm 8 mb file format fat 32 power supply usb port 30 downwards compatible accessories usb 30 cable downwards compatible operating system microsoft windows xpvista78 mac os 106 or higher linux 24x dimensions 80 x 122 x 12 mm h x w x d