My book studio desktop hard drive features blazing fast usb 30 performance massive capacity compatibility with apple time machine and password protection all in a a premium aluminum enclosure that complements your macencased in a streamlined aluminum enclosure that remains cool to the touch this drive complements your mac and as always takes up minimal space on your desksave and access data at top speeds with the high performance usb 30 connectivitywith up to 4 tb capacity theres p