Seagate ST3500630NS Product Manual - Page 21

Recording and interface technology, Physical characteristics - 500gb

Page 21 highlights

2.4 Recording and interface technology Interface Recording method Recording density, KBPI (kbits/inch max) Track density, KTPI (ktracks/inch avg) Areal density (Gbits/inch2 avg) Spindle speed (RPM) (± 0.2%) Internal data transfer rate (Mbits/sec max) Sustained data transfer rate (Mbytes/sec max) I/O data-transfer rate (Mbytes/sec max) 750GB 500GB 400GB Serial ATA (SATA) Perpendicular 926 813 781 145 128.2 114.4 7,200 1,030 78 72 300 (Ultra DMA mode 5) 320GB 250GB 813 2.5 Physical characteristics Maximum height Maximum width Maximum length Max weight ST3750640NS and ST3750840NS ST3500630NS, ST3500830NS, ST3400620NS, ST3400820NS, ST3320620NS and ST3320820NS ST3250620NS and ST3250820NS Cache buffer ST3750640NS ST3500630NS ST3400620NS ST3320620NS ST3250620NS ST3750840NS ST3500830NS ST3400820NS ST3320820NS ST3250820NS 26.1 mm (1.028 inches) 101.6 mm (4.000 +/- 0.010 inches) 146.99 mm (5.787 inches) 720 grams (1.59 lbs) 635 grams (1.4 lbs) 580 grams (1.28 lbs) 16 Mbytes (16,384 kbytes) 8 Mbytes (8,192 kbytes) Barracuda ES Serial ATA Product Manual, Rev. B 15

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Barracuda ES Serial ATA Product Manual, Rev. B
15
2.4
Recording and interface technology
2.5
Physical characteristics
750GB
500GB
400GB
320GB
250GB
Interface
Serial ATA (SATA)
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)
300 (Ultra DMA mode 5)
Maximum height
26.1 mm (1.028 inches)
Maximum width
101.6 mm (4.000 +/- 0.010 inches)
Maximum length
146.99 mm (5.787 inches)
Max weight
ST3750640NS and ST3750840NS
720 grams (1.59 lbs)
ST3500630NS, ST3500830NS, ST3400620NS,
ST3400820NS, ST3320620NS and ST3320820NS
635 grams (1.4 lbs)
ST3250620NS and ST3250820NS
580 grams (1.28 lbs)
Cache buffer
ST3750640NS
ST3500630NS
ST3400620NS
ST3320620NS
ST3250620NS
16 Mbytes (16,384 kbytes)
ST3750840NS
ST3500830NS
ST3400820NS
ST3320820NS
ST3250820NS
8 Mbytes (8,192 kbytes)