WD introduces world's slimmest 1TB hard drive

Mobile hard drives are slimming down to fit into the next generation of notebooks. We've already seen WD introduce several 500GB models that are just 5 mm thick. Now, the company has announced a 7-mm design with a terabyte of storage.

The extra two millimeters of z-height allow WD to squeeze in an extra platter, doubling the capacity of its UltraSlim drives. This new Slim model is the first 7-mm drive to deliver 1TB of storage, WD says. Competing solutions are limited to 500GB.

As a member of the WD Blue family, the Slim 1TB spins its platters at a sedate 5,400 RPM. You'll want to pair the drive with a caching SSD for optimal performance. The drive doesn't skimp elsewhere, though. It features WD's dual-stage actuator tech, a StableTrac motor that anchors the spindle at both ends, and a handful of other enhancements designed to improve reliability and shock tolerance.

WD expects the Slim 1TB to see action in skinny notebooks and all-in-one PCs. The drive is shipping now and should pop up at online retailers for $139. Too bad the warranty runs out after only two years.

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