AcomData 250GB E5 USB 2.0/FireWire External Hard Drive with PushButton Backup (HD250UFAPE5-72) Choose the blazing speed of USB 2.0 or the ferocity of FireWire Rubber feet and detachable zinc alloy stand included for vertical or horizontal setup Hot-pluggable drive can be turned off when not in use to conserve electricity PushButton Backup lets you back up your important files simply by pushing a button 7200 RPM hard drive, 8 MB cache