Seagate ST3750840ACE ユーザーズマニュアル

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DB35.3 Series PATA Product Manual, Rev. C
9
2.4
Recording and interface technology 
2.5
Physical characteristics
750GB
500GB
400GB
320GB
300GB
250GB
Interface
ATA
Recording method
Perpendicular
Recording density,  KBPI (kbits/inch max)
926
813
781
813
Track density, KTPI (ktracks/inch avg)
145
Areal density (Gbits/inch
2
 avg)
128.2
114.4
Spindle speed (RPM) (± 0.2%)
7,200
Internal data transfer rate (Mbits/sec max)
1,030
Sustained data transfer rate (Mbytes/sec max)
78
72
I/O data-transfer rate (Mbytes/sec max)
100 (Ultra DMA mode 5)
Drive specification
Maximum height
(mm)
(inches)
26.1
1.028
Maximum width
(mm)
(inches)
101.6
4.000 +/- 0.010
Maximum length
(mm)
(inches)
146.99
5.787
Typical weight
     ST3320820ACE, ST3300820ACE and ST3250820ACE
     ST3500830ACE and ST3400820ACE
     ST3750840ACE
580 grams (1.28 lbs)
635 grams (1.40 lbs)
720 grams (1.59 lbs)
Cache Size
8 Mbytes