Seagate ST9120310AS, Product Manual

Page: 14 / 48

6 Momentus 5400.5 SATA Product Manual, Rev. B
2.4 Physical organization
2.5 Recording and interface technology
2.6 Physical characteristics
Drive model Read/write heads Number of discs
ST9320320AS 4 2
ST9250320AS 4 or 3 2
ST9200321AS 3 2
ST9160310AS and ST9160310ASG 2 1
ST9120310AS and ST9120310ASG 2 1
ST980310AS and ST980310ASG 1 1
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/inch avg) 1,337k
Track density TPI (tracks/inch avg) 190k
Areal density (Gbits/inch
2
avg) 254
Spindle speed (RPM) (
±
0.2%) 5,400
Maximum Internal transfer rate (Mbits/sec) 830
I/O data-transfer rate (Mbytes/sec max) 300
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)
100.50 +/-0.25
3.957 +/-0.010
Weight (max)
ST9320320AS
ST9250320AS
ST9200321AS
ST9160310AS and ST9160310ASG
ST9120310AS and ST9120310ASG
ST980310AS and ST980310ASG
98.8 grams
0.218 pounds
93.5 grams
0.206 pounds