Seagate ST9320424ASG ユーザーズマニュアル

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

5

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

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.

 

 

 

 

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/inch

2 

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