Western Digital My Passport for Mac 500GB
USB, 500 GB, 5400 rpm, External 2.5", Interface: USB, Interface Type: USB 2.0, Internal/External: Extern, Storage capacity: 500.0 GB, Cache memory: MB, Size: External 2.5", Revolutions per min: 5400 rpm, Access time: ms, Interface Transfer Rate: 60.0 MB/s