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2.4
Physical organization
Drive model
ST9320424AS and ST9320424ASG
ST9250424AS and ST9250424ASG
ST9160414AS and ST9160414ASG
ST9120414AS and ST9120414ASG
ST980414ASG
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 (Gbits/sec)
I/O data-transfer rate (Gbits/sec max)
Interleave
Cache buffer
2.6
Physical characteristics
Drive specification
Height
(mm)
(inches)
Width
(mm)
(inches)
Length
(mm)
(inches)
Typical weight
ST9320424AS
ST9320424ASG
ST9250424AS
ST9250424ASG
ST9160414AS
ST9160414ASG
ST9120414AS
ST9120414ASG
ST980414ASG
8
Read/write heads
4
3
2
2
1
max)
9.5 +/-0.2
0.374 +/-0.0078
69.85 +/-0.249
2.75 +/-0.0098
100.33 +/-0.25
3.95 +/-0.010
110 grams
0.238 pounds
105 grams
0.227 pounds
Number of discs
2
2
1
1
1
Serial ATA (SATA)
Perpendicular
1,334k
190k
253
7,200
1.1
3.0
1:1
16 Mbytes (16,384 kbytes)
Momentus 7200 FDE.1 SATA Product Manual, Rev. A
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