Barracuda 7200.10 Serial ATA Product Manual, Rev. F
27
2.3
Default logical geometry
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to
n–1,
where
n
is
the number of guaranteed sectors as defined above
.
2.4
Recording and interface technology
Cylinders
Read/write heads
Sectors per track
16,383
16
63
Model capacity
750
500
400
320
300
160
120
80
40
Interface
Serial ATA (SATA)
Recording method
Perpendicular
Recording density (kbits/inch max)
926
813
781
824
Track density (ktracks/inch avg)
145
137.259
Areal density (Gbits/inch
2
avg)
128.2
114.4
101
Spindle speed (RPM)
7,200 ± 0.2%
Internal data transfer rate (Mbits/sec max)
1,030
930
Sustained data transfer rate (Mbytes/sec max)
78
72
78
I/O data-transfer rate (Mbytes/sec max)
300
Model capacity
ST3250620AS
ST3250820AS
ST3200820AS
ST3250410AS
ST3250310AS
Interface
Serial ATA (SATA)
Recording method
Perpendicular
Recording density (kbits/inch max)
813
1,090
Track density (ktracks/inch avg)
145
150
Areal density (Gbits/inch
2
avg)
114.4
164
Spindle speed (RPM)
7,200 ± 0.2%
Internal data transfer rate (Mbits/sec max)
1,030
1,287
Sustained data transfer rate (Mbytes/sec max)
72
110
I/O data-transfer rate (Mbytes/sec max)
300
Summary of Contents for BARRACUDA 7200.10 ST3120215AS
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