Western Digital My Book Studio Edition II 4TB (USB2.0/FW400/FW800/eSATA) (WDH2Q40000A)

2-Drive Edition. 

Speed is what you need for video editing, big design projects, or managing photo shoots and that's what this drive delivers with FireWire 800 and eSATA connectivity. With our automatic backup capability your creative masterpieces will be backed up the minute you save them.

Product Features:
The Speed You Need:
Lightning-fast FireWire 800 combined with RAID 0 (Striped) yields the speed you need for smooth video editing, rendering complex 3D objects or special effects and saving huge blocks of data in record time.

Cooler, Quieter, Eco-friendlier:
Designed to use only WD's GreenPower drives, this system uses about 30% less energy than standard systems and runs quietly because it doesn't need a fan.
(* Based on comparison between a 1 TB dual-drive system using 7200 RPM drives and a 1 TB dual-drive system using WD's GreenPower drives.)

Formatted for Mac:
Works with Apple's Time Machine. Includes software and instructions for reformatting to Windows.

User Serviceable:
Want to upgrade a drive? Simply open the case and replace the existing drive – no screwdriver needed.

Automatic Backup Software:
Back up important projects to multiple destinations including file servers, portable drives and My Book. Set it and forget it; every time you save a change it's automatically backed up.

Capacity Gauge:
See at a glance how much space is available on your storage system.

Intelligent Drive Management Features:
Automatic power-up, Safe Shutdown, and LED status and activity lights make this storage system especially easy to use. (Works with USB and FireWire connections only.)

Powerful Quad interface:
* USB 2.0 (480 Mbits/s (Max) Transfer Rate)
* FireWire 400 (400 Mbits/s (Max) Transfer Rate)
* FireWire 800 (800 Mbits/s (Max) Transfer Rate)
* eSATA (3 Gb/s (Max) Transfer Rate)