HGST's new 1TB mobile hard drive is slimmer, faster

2.5-inch mobile hard drives with 1TB capacities are hardly new. Western Digital launched one way back in July 2009, and we've seen other models from companies like Samsung since then. The thing is, those drives tend to have either thicker-than-normal 12.5-mm enclosures or sluggish 5,400-RPM spindle speeds.

Earlier today, Western Digital subsidiary HGST pulled back the curtain on a 2.5" mobile drive with a 1TB capacity, a 9.5-mm profile, and a 7,200-RPM spindle speed. HGST says this new Travelstar drive is the first of its kind.

The drive supplements its unique combination of spindle speed, size, and capacity with a 32MB cache and a 6Gbps Serial ATA interface. It also uses Advanced Format (i.e. 4KB sectors) to boost useful storage capacity. Advanced Format premiered in Western Digital's Caviar Green desktop drives and has become fairly prevalent over the past three years.

The 1TB, 2.5-inch, 7,200-RPM Travelstar is now available as part of either a "retail kit" or in an external USB 3.0 enclosure, HGST says. The upgrade kit, which includes "step-by-step instructions," will set you back $99. Expect to pay $110 for the external USB 3.0 drive, which is dubbed the 1TB Touro Mobile Pro.

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