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WD ships Thunderbolt-enabled My Book

John Hilliard

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.,

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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.


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