Product description capacity 500 gb form factor 2 5 colour white material plastic led display yes interface super speed usb port 30 max reading transfer rate 85 00 mbs 570 x max writing transfer rate 75 00 mbs 503 x rpm cache 5400 umin 8mb file format fat 32 power supply super speed usb port 30 weight 165 g accessories usb 30 cable operating system mac os 10x microsoft windows xpvista7