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4
Drive specification
Formatted Gbytes (x10
Guaranteed sectors
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Physical read/write heads
Discs
Recording density BPI (bits/inch max)
Track density TPI (tracks/inch max)
Areal density
2
(Mbits/inch
max)
Spindle speed (RPM)
Internal data transfer rate (Mbits/sec)
I/O data transfer rate (Mbytes/sec max)
ATA data-transfer modes supported
Cache buffer (Mbytes)
Height (mm max)
Width (mm max)
Length (mm max)
Weight (typical)
Average seek time (msec typical)
Track-to-track seek time (msec typical)
Read/write seek time (msec typical)
Full-stroke seek time (msec typical)
Power-on to ready (max)
Standby to ready (typical)
Spindown (typical)
Startup current (max)
Seek power (typical)
Barracuda 5400.1 Product Manual, Rev. A
6
bytes)
ST320015A
20
39,102,336
512
63
16
16,383
1
1
405,251
94,000
37,452
5,800
437
100
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
2
19.99
102
146.9
454 grams (1.1 lb)
12.0 (read); 13.0 (write)
0.3 (read); 0.7 (write)
13.0 (read); 16.0 (write)
22 (read); 23 (write)
6.5 seconds
6.0 seconds
10 seconds
1.20 amps (5V); 2.0 amps (12V)
7.3 watts
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