Aimed at the Mac user, the Western Digital My Book Studio (4TB) ($259.99 list) is a metal-clad external hard drive. Its matte silver chassis matches the aluminum case of your new iMac, Mac mini, or MacBook Pro, and its USB 3.0 connection means that it's speedy for new Macs, while remaining...

No visual capacity indicator; No Thunderbolt.

If you think bigger is better when it comes to storage space, you might be interested in Western Digital's My Book Studio Edition II , which combines two 3TB drives in a RAID 0 setup for a whopping 6TB of data storage.

Sleek design; Lots of storage space; 5-year limited warranty

Unimpressive write speeds

This summer WD revamped their My Book Studio line of desktop external hard drives. The new My Book Studios feature an all metal aluminum enclosure and an increased capacity 3TB Caviar Green hard drive inside.

Great looking brushed metal case; Strong performance from FireWire 800; Quiet; passively cooled; design

No eSATA for PC users

Aimed at the Mac user, the Western Digital My Book Studio (4TB) ($259.99 list) is a metal-clad external hard drive. Its matte silver chassis matches the aluminum case of your new iMac, Mac mini, or MacBook Pro, and its USB 3.0 connection means that it's speedy for new Macs, while remaining...

If you think bigger is better when it comes to storage space, you might be interested in Western Digital's My Book Studio Edition II , which combines two 3TB drives in a RAID 0 setup for a whopping 6TB of data storage.

Sleek design; Lots of storage space; 5-year limited warranty

Unimpressive write speeds

The Western Digital My Book Studio Edition allows you to easily stow away precious digital memories without breaking the bank.

Western Digital's latest My Book external hard disk consists of two 1TB disks. In RAID 0 mode, the two disks' capacities are combined to give a whopping 2TB of storage, but if one disk fails then you'll lose all your data.

The My Book Studio is Western Digital's Mac-focused range. Unlike its single drive cousin , it's not encased in metal, but rather silver spray-painted plastic. The Studio Edition II is rather sensibly named, in that it contains two hard drives, sorting it out for a maximum capacity of 6TB.

User serviceable drives; Great sequential FireWire 800 performance; RAID 1 or 0 available

Not great on the random speeds; we've seen better eSATA performance; Lid is a pain to close

While for some of us, the ability for our hard drive to be able to resist sniper fire underwater is a going concern ( see iOSafe Rugged Portable ), most of us are really just in the market for as much storage space as we can afford.

Slowish write speeds

The My Book Studio Edition is a welcome addition to the My Book family, and should find a home on many Mac and PC users' desks.

Capacity indicator isn't accurate; Not the fastest eSATA drive

No fans; Little heat; Huge capacity; Attractive design; Five year warranty; Fully featured Mac software