2.0Drive 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 the ST910021AS, ST980825AS, ST96023AS, and ST94015AS models.

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 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/inch2 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

 

 

 

 

 

 

 

 

 

Momentus 7200.1 SATA Product Manual, Rev. B

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Seagate ST96023AS, ST980825AS, ST94015AS, ST910021AS manual Drive specifications, Specification summary table