
6 Barracuda 7200.7 Product Manual, Rev. E
2.5 Recording and interface technology
2.6 Physical characteristics
Interface ATA
Recording method 16/17 EPRML
Recording density BPI (bits/inch max) 595,000
Track density TPI (tracks/inch max) 94,600
Areal density (Mbits/inch
2
max) 56.3
Spindle speed (RPM) (± 0.2%) 7,200
Internal data-transfer rate OD (Mbytes/sec max) 85.4
Sustained data transfer rate OD (Mbytes/sec max) 58
I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5)
Interleave 1:1
Cache buffer
ST3160021A, ST3120022A, ST380011A, ST360014A, and ST340014A 2 Mbytes (2,048 kbytes)
ST3160023A, ST3120026A, and ST380013A 8 Mbytes (8,192 kbytes)
Drive specification
Maximum height
(mm)
(inches)
26.035
1.028
Maximum width
(mm)
(inches)
101.6
4.00
Maximum length
(mm)
(inches)
146.99
5.787
Typical weight
(grams)
(pounds)
635
1.4
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