Model Number: MB764LL/A  Wireless hard drive that works seamlessly with Time Machine in Mac OS X Leopard. It's also a full-featured 802.11n Wi-Fi base station Time Capsule works with Mac computers; PCs; iPhone; iPod touch; Apple TV; and virtually all 802.11a/b/g/n Wi-Fi wireless devices all at the same time Protect yourself with the built-in firewall and industry-standard encryption technologies including WPA/WPA2 and 128-bit WEP System Requirements - For Time Machine backup - Mac with Mac OS X Leopard / For setup and administration - Mac computer with Mac OS X v.10.4 or later; CD drive; and Ethernet or wireless networking capability; PC with Windows XP (SP2) or Windows Vista; CD drive; and Ethernet or wireless networking capability / For wireless client access - Mac with AirPort or AirPort Extreme wireless capability; PC with 802.11a/b/g/n / For shared hard drive - Mac with Mac OS X v10.4.8 or later; PC with Windows XP (SP2) or Windows Vista; Bonjour | 
