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Momentus 5400.2 SATA Product Manual, Rev. C
2.4 Physical organization
2.5 Recording and interface technology
2.6 Physical characteristics
Drive model Read/write heads Number of discs
ST9120821AS 4 2
ST9100824AS 4 2
ST98823AS 3 2
ST96812AS 2 1
ST94813AS 2 1
ST93811AS 1 1
Interface Serial ATA (SATA)
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 778k
Track density TPI (tracks/inch max) 126k
Areal density (Mbits/inch
2
max) 98.2
Spindle speed (RPM) (± 0.2%) 5,400
Maximum Internal transfer rate (Mbytes/sec) 42
I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0)
Interleave 1:1
Cache buffer 8 Mbytes (8,192 kbytes)
Drive specification
Height (mm)
(inches)
9.5 +/-0.2
0.374 +/-0.0078
Width (mm)
(inches)
69.85 +/-0.25
2.75 +/-0.0098
Length (mm)
(inches)
100.5 +/-1.6
3.945 +/-0.0098
Typical weight (grams)
(pounds)
100
0.22