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1.3 Recording and interface technology
Interface ATA
Recording method RLL (1,7)
Recording density (bits/inch) 90,000
Flux density (flux change/inch) 67,500
Track density (tracks/inch) 3,807
Areal density (Mbits/inch
2
) 342
Spindle speed (RPM)
( ± 0.5%)
4,500
Internal data-transfer rate
(Mbits per sec max—ZBR)
44
I/O data-transfer rate
(Mbytes per sec max)
16.6 (PIO mode 4 with IORDY)
16.6 (multiword DMA mode 2)
Interleave 1:1
Cache buffer (Kbytes) 120
1.4 Physical dimensions
Height (max) inches
(mm)
0.754
(19.15)
Width (max) inches
(mm)
2.76
(70.10)
Depth (max) inches
(mm)
4.010
(101.85)
Weight (typical) ounces
(kg)
7.4
(0.21)
Note. Maximum depth excludes I/O connector pins, which may extend
up to 0.010 inches beyond the edge of the head/disc assembly.
6 Marathon 810 (ST9816AG) Product Manual, August 1995