Specification Summary Table - Seagate U Series Product Manual

2

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
6
Formatted Gbytes ( 10 bytes)
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)
2
Areal density (Mbits/inch max)
Spindle speed (RPM)
Internal data-transfer rate
(Mbits/sec max)
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)
Track-to-track seek time
(msec typical)
Average seek time
(msec typical)
U Series Family Product Manual, Rev. B
ST380020A ST360020A ST340810A ST320410A
80 60
156,301,488 117,231,408 78,165,360
512
63
16
16,383
4 3
2 2
562,436
58,000
32,622
5,400
436
100
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
2
26.1
101.8
147.0
680 grams (1.5 lb)
1.2 (read) 2.0 (write)
8.9
40 20
39,102,336
2 1
1 1