Seagate ST3500630NS Product Manual - Page 21
Recording and interface technology, Physical characteristics - 500gb
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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