Western Digital announced this week that the company has released a Thunderbolt-compatible version of its My Book external hard disk drive series.
The new drive – dubbed the Thunderbolt Duo - comes in four or six-terabyte versions, and has RAID 0, 1 and JBOD options, as well as a pair of Thunderbolt ports, according to WD. The drive is also compatible with Mac OS X’s Time Machine backup process.
Developed by Intel Corp. in collaboration with Apple Inc., Thunderbolt combines PCI Express and DisplayPort I/O into a dual-channel cable capable of 10 Gbps bandwidth in both directions in each port. Thunderbolt storage technology also allows up to seven devices to be daisy-chained together on a single port, according to Intel, although Apple’s website puts that limit at six devices. Thunderbolt’s promised bandwidth compares favorably to USB 3.0’s 5 Gbps, FireWire’s 800 Mbps capacity, Fibre Channel’s 8 Gbps (soon to be 16 Gbps) and eSATA’s 6 Gbps bandwidth.
The My Book Thunderbolt Duo goes for $599.99 for the 4 TB version, and $699.99 for 6 TB.