Western Digital has introduced the My Book Studio Edition II, a dual-drive storage system with a massive 6TB of storage. The company says that new capacity provides users 33 percent more storage than the previous capacity, while being the same size.

The drive is formatted for Macs and support's Apple's Time Machine backup technology, but can be reformatted for Windows Vista and 7.

It offers a quad interface for a mix of performance and flexibility including eSATA and FireWire 800 when maximum performance is essential, and FireWire 400 and USB 2.0 when system flexibility is most important.

The drive boasts cool, eco-friendly operation with WD's drives with WD GreenPower Technology that consume approximately one third less power than standard dual-drive external storage systems, using an efficient convection cooling architecture and power saving mode designed without a fan to run quietly.

Users can open the enclosure and replace the drive inside, and the drive has a capacity gauge to see at a glance how much space is available.