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http://www.toshiba.com/taissdd/produ...gax-Over.shtml

40GB 2.5" Super Slimline (9.5mm) HDD
MK4019GAX (HDD2173)
Toshiba America Information Systems, Inc. (TAIS), Storage Device Division introduces the MK4019GAX 2.5-inch 20GB Hard Disk Drive. The MK4019GAX offers the industries highest areal density per platter, at 34.7 gigabits per square inch. The drive's 5400 RPM motor speed, improves system-level performance by as much as 12 percent when compared to 4200 RPM drives.

This new drive offers enough capacity for portable video recording and editing, with lower power consumption compared to the traditional 3.5-inch HDDs. This functionality provides ideal storage for a range of commercial and consumer notebooks, as well as non-PC applications such as PDAs, printers, copiers, GPS systems and MP3 players. The MK4019GAX is ATA-5 compliant, supporting high transfer rates of up to 100 megabytes per second.

40GB capacity
Rotational Speed of 5,400rpm
Fluid Dynamic Bearing (FDB) motor drive
9.5mm High
12ms Average Seek Time
ATA-5 Interface
100MB/sec Transfer Rate
16,384KB Buffer
300,000 MTTF Hours