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2.4
Physical organization
Drive model
ST9500327AS
ST9320327AS
ST9250317AS
ST9160317AS
ST9120317AS
ST980314AS
2.5
Recording and interface technology
Interface
Recording method
Recording density BPI (bits/inch max)
Track density TPI (tracks/inch max)
2
Areal density (Gbits/inch
Spindle speed (RPM) (± 0.2%)
Maximum Internal transfer rate (Mbits/sec)
I/O data-transfer rate (Mbytes/sec max)
Interleave
Cache buffer
2.6
Physical characteristics
Drive specification
Height
(mm)
(inches)
Width
(mm)
(inches)
Length
(mm)
(inches)
Typical weight
ST9500327AS
ST9320327AS
ST9250317AS
ST9160317AS
ST9120317AS
ST980314AS
Momentus 5400 FDE.4 SATA Product Manual, Rev. C
Read/write heads
4
3
2
2
1
1
max)
9.5 +/-0.2
0.374 +/-0.0079
69.85 +/-0.25
2.75 +/-0.0098
100.35 +0.20 / -0.25
3.957 +0.0079 / -0.0098
98.8 grams
0.218 pounds
93.5 grams
0.206 pounds
Number of disks
2
2
1
1
1
1
Serial ATA (SATA)
Perpendicular
1490k
265k
394
5400
1175
300
1:1
8 Mbytes (8192 kbytes)
7
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