Drive Specifications; Specification Summary Table - Seagate ST9250317AS - Momentus 5400 FDE 250 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.
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 2: Drive specifications
Drive specification
Formatted Gbytes (512 bytes/
sector)*
Guaranteed sectors
Bytes per sector
Physical read/write heads
Disks
Cache (Mbytes)
Recording density in BPI (bits/
inch max)
Track density TPI (tracks/inch
max)
2
Areal density (Gbits/inch max)
Spindle speed (RPM)
Internal transfer rate (Mbits/sec
max)
I/O data transfer rate (Mbytes/
sec max)
ATA data-transfer modes sup-
ported
Height (max)
Width (max)
Length (max)
Weight (typical)
Average latency (msec)
Power-on to ready (sec typical)
Power-on to ready (sec max)
Standby to ready (sec typical)
Standby to ready (sec max)
4
ST9500327AS ST9320327AS
500 320
976,773,168 625,142,448
512
4 3
2 2
8
1,490k
265k
394
5,400
1,175
300
SATA 1.5/3.0, Serial ATA Revision 2.6
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
9.5 +/- 0.2 mm (0.374 +/- .0079 inches)
69.85 +/- 0.25 mm (2.75 +/- 0.0098 inches)
100.33 +0.20 / -0.25 mm (3.957 +0.0079 / -0.0098 inches)
98.8 grams (0.218 lb)
5.6
3.6
3.8
1.8
2
ST9250317AS ST9160317AS
160 120
488,397,168 312,581,808
2 2
1 1
93.5 grams (0.206 lb)
Momentus 5400 FDE.4 SATA Product Manual, Rev. B
ST9120317AS ST980314AS
120
234,441,648 156,301,488
1 1
1 1