Seagate ST9320424ASG, ST980414ASG, ST9250424ASG Drive specifications, Specification summary table

2.0Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power.

2.1Specification 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
		ST9320424AS	ST9250424AS	ST9160414AS	ST9120414AS
Drive specification		ST9320424ASG	ST9250424ASG	ST9160414ASG	ST9120414ASG	ST980414ASG
Formatted Gbytes (512 bytes/sector)*		320	250	160	120	80
Guaranteed sectors		625,142,448	488,397,168	312,581,808	234,441,648	156,301,488
Bytes per sector		512
Physical read/write heads		4	3	2	2	1
Discs		2	2	1	1	1
Cache (Mbytes)		16
Recording density in BPI (bits/inch max)		1,334k
Track density TPI (tracks/inch max)		190k
Areal density (Gbits/inch2 max)		253
Spindle speed (RPM)		7.200
Internal transfer rate (Gbits/sec max)		1.1
I/O data transfer rate (Gbits/sec max)		3.0
ATA data-transfer modes supported		SATA 1.5/3.0, Serial ATA Revision 2.6
		PIO modes 0–4
		Multiword DMA modes 0–2
		Ultra DMA modes 0–6
Height (max)		9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max)		69.85 +/- .249 mm (2.75 +/- .0098 inches)
Length (max)		100.33 +/- 0.25 mm (3.95 +/- .010 inches)
Weight (typical)		110 grams (0.238 lb)		105 grams (0.227 lb)
Average latency (msec)		4.17
Power-on to ready (sec typical)		4.0
Standby to ready (sec typical)		3.0
Track-to-track seek time, read (msec typical)		1.0
Average seek, read (msec typical)		11.0
Average seek, write (msec typical)		13.0
Startup current, +5V (max)		1.0 amps
Seek power (typical)		2.3 watts

Momentus 7200 FDE.1 SATA Product Manual, Rev. A 5