The WD My Book Mirror Edition has 2 TB of storage in a 6.5" x 6.0" x 3.87" footprint. This drive has a high-speed USB 2.0 interface.

Using GreenPower™ technology, this system, with its efficient convection cooling architecture, fan-less design, and power saving mode, is cool and quiet and consumes less power than standard systems.

The WD My Passport Studio has 500 GB of storage in a tiny 4.99" x 3.18" x 0.71" footprint.

This high speed portable hard drive is perfect for recording scenarios and taking terrain databases on the road. You can save and access data at top speeds with the high-performance FireWire 800 interface. Also included are FireWire 400 and USB 2.0 interfaces for maximum flexibility. With the illuminated capacity gauge, you can see at a glance how much space is available on the drive.