Drive Specifications; Specification Summary Table - Seagate ST9100824AS - Momentus 5400.2 100 GB Hard Drive Product Manual

2.0

Drive specifications

• Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
ST9120821AS, ST9100824AS, ST98823AS, ST96812AS, ST94813AS and ST93811AS models.
2.1

Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or defi-
nition, see the appropriate section of this manual.
Table 1: Drive specifications
Drive specification
Formatted Gbytes (512 bytes/sector)
Guaranteed sectors
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Physical read/write heads
Discs
Recording density in BPI
(bits/inch max)
Track density TPI (tracks/inch max)
2
Areal density (Mbits/inch max)
Spindle speed (RPM)
Internal transfer rate
(Mbytes/sec max)
I/O data transfer rate
(Mbytes/sec max)
ATA data-transfer modes supported
Cache buffer
Height (max)
Width (max)
Length (max)
Weight (typical)
Average latency (msec)
Power-on to ready (typical)
Standby to ready (typical)
Momentus 5400.2 SATA Product Manual, Rev. C
ST9120821AS ST9100824AS ST98823AS
120 100
234,441,648 195,371,568
512
63
16
16,383
4 4
2 2
778k
126k
98.2
5,400
42
150
SATA 1.0, SATA II
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
8 Mbytes
9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
69.85 mm (2.75 +/- 0.0098 inches)
100.5 +/- 1.6 mm (3.96 +/- 0.063 inches)
100 grams (0.22 lb)
5.56
3.5 sec
3.0 sec
ST96812AS
80 60
156,301,488 117,210,240
3 2
2 1
ST94813AS ST93811AS
40 30
78,140,160 58,605,120
2 1
1 1
3