Seagate ST320LT007 - 9ZV142 manual Drive specifications, Specification summary table

3.0Drive 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 all models.

3.1Specification 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 1:	Drive specifications
		ST320LT007 - 9ZV142	ST250LT007 - 9ZV14C	ST160LT007 - 9ZV14D
		ST320LT009 - 9WC142	ST250LT009 - 9WC14C	ST160LT009 - 9WC14D
Drive specification		ST320LT011 - 9ZVG42	ST250LT011 - 9ZVG4C	ST160LT011 - 9ZVG4D
		ST320LT014 - 9YK142	ST250LT014 - 9YK14C	ST160LT014 - 9YK14D
Formatted capacity (GB)*		320	250	160
Guaranteed logical blocks (LBA)		625,142,448	488,397,168	312,581,808
Bytes per physical sector		4096
Physical read/write heads		2		1
Disks		1
Cache (MB)		16
Recording density in BPI (bits/in avg)		1397k
Track density TPI (tracks/in avg)		315k
Areal density (Gb/in2 avg)		425
Spindle speed (RPM)		7200
Average latency (ms)		4.17
Internal transfer rate (Mb/s max)		1247
I/O data transfer rate (Gb/s max)		3.0
ATA data-transfer modes supported		SATA 1.0, Serial ATA Revision 2.6
		PIO modes 0–4
		Multiword DMA modes 0–2
		Ultra DMA modes 0–6
Height (max)		7.0 mm (0.276 in)
Width (max)		70.10 mm (2.76 in)
Length (max)		100.55 mm (3.959 in)
Weight (max)		<92.0 g (<0.203 lb)
Power-on to ready (sec typical)		3.5
Standby to ready (sec typical)		3.0
Track-to-track seek time, read (ms typical)		1.5
Average seek, read (ms typical)		11
Startup current, +5V (max)		1.0A

4 Momentus Thin Product Manual, Rev. C Gen-2