Western Digital just added a new 2TB capacity for its Mac OS X-oriented My Passport Studio external hard drive range. Other capacities include 500GB, 750GB, and 1TB, and the all-metal hard drive is compatible with Apple's Time Machine back-up feature out of the box. There is no power adapter needed when users plug it in using the USB 2.0 interface or one of the two FireWire 800 ports, which also boosts transfer speeds.
