HP Pavilion xe700 HP Pavilion PCs - (English) Seagate Hard Drive U Series 10 M - Page 10

Specification summary table

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2 U10 Family Product Manual, Rev. A Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Drive Specification Guaranteed Mbytes (×106 bytes) ST320423A 20,485 ST315323A 15,364 ST310212A 10,242 Guaranteed sectors 40,011,300 30,008,475 20,005,650 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 16 16 Default cylinders 16,383 16,383 16,383 Physical read/write heads 4 3 2 Discs 2 2 1 Recording density BPI (bits/inch max) 396,067 Track density TPI (tracks/inch) 20,107 Areal density (Mbits/inch2 max) 7,964 Spindle speed (RPM) 5,400 Internal data-transfer rate (Mbits/ sec max) 308 I/O data-transfer rate (Mbytes/ sec max) 66.6 ATA data-transfer modes supported PIO modes 0-4 Multiword DMA modes 0-2 Ultra DMA modes 0-4 Cache buffer (Kbytes) 512 Height (mm max) 26.1 Width (mm max) 101.85 Length (mm max) 147.0 Weight (typical) 544 grams (1.2 lb) Track-to-track seek time (msec typical) 1.5 (read) 2.1 (write) Average seek time (msec typical) 8.9

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2
U10 Family Product Manual, Rev. A
Specification summary table
The specifications listed in this table are for quick reference. For details
on specification measurement or definition, see the appropriate section
of this manual.
Drive Specification
ST320423A
ST315323A
ST310212A
Guaranteed Mbytes (
×
10
6
bytes)
20,485
15,364
10,242
Guaranteed sectors
40,011,300
30,008,475
20,005,650
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
16
16
Default cylinders
16,383
16,383
16,383
Physical read/write heads
4
3
2
Discs
2
2
1
Recording density
BPI (bits/inch max)
396,067
Track density
TPI (tracks/inch)
20,107
Areal density
(Mbits/inch
2
max)
7,964
Spindle speed (RPM)
5,400
Internal data-transfer rate (Mbits/
sec max)
308
I/O data-transfer rate (Mbytes/
sec max)
66.6
ATA data-transfer modes
supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–4
Cache buffer (Kbytes)
512
Height (mm max)
26.1
Width (mm max)
101.85
Length (mm max)
147.0
Weight (typical)
544 grams (1.2 lb)
Track-to-track seek time
(msec typical)
1.5 (read) 2.1 (write)
Average seek time (msec typical)
8.9