Apple has updated its Time Capsule line — which combines storage with a Wi-fi base station — with higher storage capacities of 2TB or 3TB of built-in storage. Previously, it was available in 1TB and 2TB models.

The revamped Time Capsules cost the same as before, despite their beefed up capabilities. The 2TB version is $299; the 3TB model is $499.

Time Capsule’s wireless hard drive is designed to work with Time Machine in Mac OS X Leopard or later. Just set Time Capsule as the designated backup drive for Time Machine, and that’s it. Depending on how much data you have, your initial backup with Time Capsule could take overnight or longer. After it completes, only changed files are backed up — automatically, wirelessly, and in the background. If you have multiple Mac computers in your house, Time Capsule can back up and store files for each Mac running Mac OS X Leopard or later on your wireless network.

Time Capsule is also an AirPort Extreme Base Station with 802.11n technology. works with other certified 802.11n devices. And it’s compatible with Mac computers and PCs that use 802.11a, b, or g technologies, as well as wireless devices such as iPhone, iPod touch, iPad, and Apple TV.

— Dennis Sellers