Filter
Top Products
Momentus 7200.1 SATA Product Manual, Rev. B
3
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
ST910021AS, ST980825AS, ST96023AS, and ST94015AS 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 ST910021AS ST980825AS ST96023AS ST94015AS
Formatted Gbytes (512 bytes/sector) 100 80 60 40
Guaranteed sectors 195,371,568 156,301,488 117,210,240 78,140,160
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Physical read/write heads 4 4 3 2
Discs 2 2 2 1
Recording density in BPI (bits/inch max) 700,000
Track density TPI (tracks/inch max) 114,000
Areal density (Gbits/inch
2
max) 81
Spindle speed (RPM) 7,200
Internal transfer rate (Mbits/sec max) 539
Sustained transfer rate OD (Mbytes/sec) 45.8
I/O data transfer rate (Mbytes/sec max) 150 (SATA 1.0)
ATA data-transfer modes supported SATA 1.0, SATA II
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes) 8
Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max) 69.85 mm (2.75 +/- 0.0098 inches)
Length (max) 100.5 +/- 1.6 mm (3.957 +/- 0.063 inches)
Weight (typical) 115 grams (0.254 lb)
Average latency (msec) 4.2 msec
Power-on to ready (typical) 4 seconds
Standby to ready (typical) 3 seconds
Startup current (typical) +5V (peak) 1.28 amps