Western Digital introduced its My Book Studio Edition II dual-drive storage system with a massive 6 terabytes (TB) of storage to meet the capacity needs of today's creative pros and Mac enthusiasts who create, store, edit and archive large HD video and photo files. The new capacity provides users 33 percent more storage than the previous capacity, while maintaining the same footprint.
that is pretty cool. dual drive systems but for $549.99 i rather just buy multiple hard drives.