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6 Momentus 7200.4 SATA Product Manual, Rev. C
2.5 Recording and interface technology
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/inch max) 1490k
Track density TPI (tracks/inch max) 265k
Areal density (Gbits/inch
2
max) 394
Spindle speed (RPM) (± 0.2%) 7200
Maximum Internal transfer rate (Gbits/sec) 1.23
I/O data-transfer rate (Gbits/sec max) 3.0
Interleave 1:1
Cache buffer 16 Mbytes (16,384 kbytes)
2.6 Physical characteristics
Drive specification
Height (mm)
(inches)
9.5 +/-0.2
0.370 +/-0.008
Width (mm)
(inches)
69.85 +/-0.25
2.750 +/-0.010
Length (mm)
(inches)
100.35 +0.20 / -0.25
3.951 +0.008 / -.010
Typical weight
ST9500420AS
ST9500420ASG
ST9320423AS
ST9320423ASG
ST9250410AS
ST9250410ASG
ST9160412AS
ST9160412ASG
ST9120410AS
ST9120410ASG
ST980412AS
ST980412ASG
110 grams
0.238 pounds
105 grams
0.227 pounds