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Momentus 7200 FDE.1 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
ST9320424AS and ST9320424ASG 4 2
ST9250424AS and ST9250424ASG 3 2
ST9160414AS and ST9160414ASG 2 1
ST9120414AS and ST9120414ASG 2 1
ST980414ASG 1 1
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/inch max) 1,334k
Track density TPI (tracks/inch max) 190k
Areal density (Gbits/inch
2
max)
253
Spindle speed (RPM) (± 0.2%) 7,200
Maximum Internal transfer rate (Gbits/sec) 1.1
I/O data-transfer rate (Gbits/sec max) 3.0
Interleave 1:1
Cache buffer 16 Mbytes (16,384 kbytes)
Drive specification
Height (mm)
(inches)
9.5 +/-0.2
0.374 +/-0.0078
Width (mm)
(inches)
69.85 +/-0.249
2.75 +/-0.0098
Length (mm)
(inches)
100.33 +/-0.25
3.95 +/-0.010
Typical weight
ST9320424AS
ST9320424ASG
ST9250424AS
ST9250424ASG
ST9160414AS
ST9160414ASG
ST9120414AS
ST9120414ASG
ST980414ASG
110 grams
0.238 pounds
105 grams
0.227 pounds