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4 Momentus 5400 FDE.4 SATA Product Manual, Rev. C

2.0 Drive specifications

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

power.

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 2: Drive specifications

Drive specification ST9500327AS ST9320327AS ST9250317AS ST9160317AS ST9120317AS ST980314AS

Formatted Gbytes (512 bytes/

sector)*

500 320 160 120 120

Guaranteed sectors 976,773,168 625,142,448 488,397,168 312,581,808 234,441,648 156,301,488

Bytes per sector 512

Physical read/write heads 4 3 2 2 1 1

Disks 2 2 1 1 1 1

Cache (Mbytes) 8

Recording density in BPI (bits/

inch max)

1490k

Track density TPI (tracks/inch

max)

265k

Areal density (Gbits/inch

max) 394

Spindle speed (RPM) 5400

Internal transfer rate (Mbits/sec

max)

1175

I/O data transfer rate (Mbytes/

sec max)

300

ATA data-transfer modes sup-

ported

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 +/- .0079 inches)

Width (max) 69.85 +/- 0.25 mm (2.75 +/- 0.0098 inches)

Length (max) 100.33 +0.20 / -0.25 mm (3.957 +0.0079 / -0.0098 inches)

Weight (typical) 98.8 grams (0.218 lb) 93.5 grams (0.206 lb)

Average latency (msec) 5.6

Power-on to ready (sec typical) 3.6

Power-on to ready (sec max) 3.8

Standby to ready (sec typical) 1.8

Standby to ready (sec max) 2

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 59 60

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