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Momentus 5400.3 PSD SATA Product Manual, Rev. A
2.4 Physical organization
2.5 Recording and interface technology
2.6 Physical characteristics
Drive model
Read/write
heads
Number
of discs
SDRAM
buffer size
Non-volatile
cache size
ST91608220AS 4 2 8 MB 256 MB
ST91208220AS 3 2 8 MB 256 MB
ST91008220AS 3 2 8 MB 256 MB
ST9808212AS 2 1 8 MB 256 MB
ST9608210AS 2 1 8 MB 256 MB
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/inch max) 870k
Track density TPI (tracks/inch max) 150k
Areal density (Gbits/inch
2
max) 132
Spindle speed (RPM) (± 0.2%) 5,400
Maximum Internal transfer rate (Mbits/sec) 352
I/O data-transfer rate (Mbytes/sec max) 150
Interleave 1:1
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)
100.50 +/-0.25
3.957 +/-0.010
Typical weight
ST91608220AS
ST91208220AS
ST91008220AS
ST9808212AS
ST9608210AS
100 grams
0.22 pounds
96 grams
0.21 pounds