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Toshiba's New 2.5-inch HDD with Perpendicular Magnetic Recording

Toshiba Corporation has announced a new 2.5-inch hard disk drive (HDD) that uses perpendicular magnetic recording technology to achieve the industry's largest 200GB capacity with only two platters. The new best of class HDD, MK2035GSS, features the highest areal density yet achieved of 277.1 megabits per square millimeter (178.8 gigabits per square inch). Toshiba plans to start mass production of the drive in August 2006.

The new 2.5-inch 200GB drive sets a new benchmark for areal density of 277.1 megabits per square millimeter (178.8 gigabits per square inch), boosting data capacity to 1.67 times that of Toshiba's highest capacity conventional 2.5-inch drive. The new drive is a slim 9.5 millimeters, as it contains only two hard-disk platters, but nonetheless has storage capacity of 200GB.

Small form factor HDDs are now used in diverse applications, from mobile PCs and to digital audio players. The market has a voracious appetite for larger data capacities, as more powerful networks and applications bring audio-visual capabilities to more and more mobile products, particularly AV notebook PCs. By applying perpendicular magnetic recording technology to 2.5-inch HDD, Toshiba brings much increased data capacity to the industry's mainstream drive, a move that will also sustain the industry trend to thinner, lighter notebook PCs, particularly high-end notebook PC offering high storage capacity.

Model name MK2035GSS
Formatted capacity 200GB
Number of platters 2
Number of heads 4
Average seek time 12msec
Data transfer rate Serial ATA II 1.2 / 150MB/s
Rotational speed 4, 200rpm
Buffer memory 8MB
Interface ATA-7
External Dimensions (WxDxH; mm) 69.85 x 100.0 x 9.5
Weight 98g
Energy consumption efficiency 0.00335W/GB
Shock resistance Operating: 3, 185 m/s2
(325G, 2msec)
Non-operating: 8, 330 m/s2
(850G, 1msec).



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