Quad interface, RAID-enabled, low power consumption and Mac ready, the WD My Book Studio II promises high performance for creative professionals. Available in 4 TB storage capacity, this external desktop hard drive for Mac has dual-drive storage system with eSATA and FireWire 800. The FireWire 800 interface renders superfast speed for graphic-demanding applications and large data transfers. A boon for creative pros, it offers the speed required for smooth video editing, rendering complex 3D objects and special effects. My Book Studio II utilises 30% lesser energy as compared to standard systems and does not require any fan.