Apple unveiled Time Capsule, a new product designed as companion hardware to the Time Machine automatic backup feature in OS X 10.5.

Introduced as part of the OS X Leopard upgrade last October, Time Machine automatically backs up the contents of a Mac to an external hard drive.

With Time Capsule, users will be able to go back through archived backups to find lost files, photos, digital media and other data. Once the missing file is found, users can restore it wirelessly from Time Capsule; they can also restore an entire system from a Time Machine backup stored on the device.

Time Capsule features dual-band antennas for 2.4 GHz or 5 GHz frequencies. It has one USB 2.0, Gigabit Ethernet and 3Gbit/sec. LAN ports. The device also has a built-in power supply and can connect to print wirelessly from a USB printer, according to Apple. In addition, Time Machine offers Wi-Fi Protected Access (WPA/WPA-2), 128-bit WEP encryption, and a built-in NAAT firewall that support NAT-PMP for Leopard's Back to My Mac feature.