Apple Time Capsule MB277LL/A (AirPort Extreme Plus 1 TB Storage) A revolutionary backup device that works wirelessly with Time Machine in Mac OS X Leopard Time Capsule can back up and store files for each Leopard-based Mac on your wireless network 1TB hard drive designed to work with Time Machine in Mac OS X Leopard. More than just a wireless hard drive, Time Capsule is also a full-featured AirPort Extreme Base Station with 802.11n technology Works with Mac and PC