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               Up for auction is ONE of Seagate 100GB 2.5" Notebook Hard Drive.

The Seagate Momentus ST9100823A features a higher capacity (100GB) as it is based on platters with a high data density, 50GB. At the time of writing this review this capacity was the world record for devices of that form-factor. So, there are two platters and four read/write heads in our sample (beside the 100GB drive, the series includes 60GB and 80GB models). As the family name suggests, the spindle rotation speed has remained the same, 5400rpm; the size of the cache buffer is 8 megabytes. The average seek time is 12.5 milliseconds; the average latency is 5.6 milliseconds. The burst transfer rate amounts to 48.5MB/s. The ST9100823A supports the UltraATA/100 interface, can sustain an operational shock of 250 Gs for 2 milliseconds and a non-operational shock of 900 Gs for 1 millisecond.

The acoustic characteristics of the drive can be considered good: the sound pressure level is 2.9 bels in the performance seek mode, 2.6 bels in the quiet seek mode, and 2.4 bels in the idle mode.

The low power consumption of the device should be emphasized, too. The manufacturer claims it to equal the power consumption of 4200rpm drives: 2.3 watts in the seek mode, 2.05/2.1 watts at read/write operations, and 0.99/2 watts in the idle/standby mode. The dimensions of the drive are 9.5x69.85x100.2mm; its weight is 102 grams. The ST9100823A is equipped with fluid dynamic bearings and Giant Magnetoresistive heads, supports EPRML technology. The drive also features the exclusive innovations 3D Defence System and QuietStep ramp load as well as the industry-standard S.M.A.R.T. So, all the positive traits of the first generation of the Momentus family have been inherited by the second generation.