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6 Momentus 42 Product Manual, Rev. A
2.5 Recording and interface technology
2.6 Physical characteristics
Technology Specification
Interface Parallel ATA
Recording method RLL 0,11
Recording density BPI (bits/inch max) 642,000 (ST94019A and ST92014A)
577,000 (ST93015A)
Track density TPI (tracks/inch max) 100,780
Areal density (Mbits/inch
2
max) 65 (ST94019A and ST92014A)
58 (ST93015A)
Spindle speed (RPM) (± 0.2%) 4,200 class performance
(spin speed actually 5,400 RPM)
Internal data-transfer rate OD (Mbytes/sec max) 48.25 (ST94019A and ST92014A)
46.05 (ST93015A)
Sustained data transfer rate OD (Mbytes/sec max) 31.0
I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5)
Interleave 1:1
Cache buffer
ST94019A, ST93015A and ST92014A
2 Mbytes (2,048 kbytes)
Height (mm)
(inches)
9.5 +/-0.2
0.374 +/-0.0078
Width (mm)
(inches)
69.85 +/-0.25
2.75 +/-0.0098
Length (mm)
(inches)
100.2 +/-0.25
3.945 +/-0.0098
Typical weight (grams)
(pounds)
99
0.218