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2 U Series CE 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 ST380020ACE ST360020ACE ST340810ACE ST320410ACE
Formatted Gbytes
(
×
10
6
bytes)
80 60 40 20
Guaranteed sectors 156,301,488 117,231,408 78,165,360 39,102,336
Bytes per sector 512
Default sectors per
track 63
Default read/write
heads 16
Default cylinders 16,383
Physical read/write
heads
4321
Discs 2 2 1 1
Recording density
BPI (bits/inch max) 562, 436
Track density TPI
(tracks/inch) 58,000
Areal density (Mbits/
inch
2
max) 32,622
Spindle speed (RPM) 5,400
Internal data-transfer
rate (Mbits/sec max)
436
I/O data-transfer rate
(Mbytes/sec max)
100
ATA data-transfer
modes
supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer (Mbytes) 2
Height (mm max) 26.1
Width (mm max) 101.8
Length (mm max) 147.0
Weight (typical) 680 grams (1.5 lb)