Seagate Momentus 7200 FDE.2 ST9500421AS vs Comparable 2.5" SATA Hard Disks
Item 3484: Seagate ST9500421AS
Size500 GB
Cache16 MB
RPM7200
Form Factor2.5"
InterfaceSATA
Speed3 Gb/s
Disk Interface RPM Cache (MB) Size (GB) Warranty Years Best Price Vendor Value (GB/$)
Hitachi 0Y30055 SATA 3 Gb/s 5400 8 500 3 79.99 6.25
Toshiba MKxx76GSX Series MK5076GSX SATA 3 Gb/s 5400 8 500 3 82.95 6.03
Western Digital Scorpio Blue WD5000BPVT SATA 3 Gb/s 5400 8 500 3 84.99 5.88
Samsung Spinpoint M8 HN-M500MBB SATA 3 Gb/s 8 500 89.99 5.56
Seagate Momentus 5400.6 ST9500325AS SATA 3 Gb/s 5400 8 500 92.00 5.43
Western Digital Scorpio Blue WD5000BEVT SATA 3 Gb/s 5400 8 500 3 98.66 5.07
Hitachi Travelstar Z5K500 HTS545050A7E380 (0J11285) SATA 3 Gb/s 5400 8 500 99.99 5.00
Seagate Momentus ST905003N1A1AS-RK SATA 3 Gb/s 5400 8 500 106.89 4.68
Western Digital AV-25 WD5000BUCT SATA 3 Gb/s 5400 16 500 109.99 4.55
Samsung Spinpoint M7E HM501II SATA 3 Gb/s 5400 8 500 109.99 4.55
Toshiba MKxx61GSYN Series MK5061GSYN SATA 3 Gb/s 7200 16 500 3 114.99 4.35
Samsung HN-M101MBB SATA 3 Gb/s 8 500 114.99 4.35
Samsung Spinpoint MP4 HM500JJ SATA 3 Gb/s 7200 16 500 114.99 4.35
Hitachi Travelstar 7K750 0J12281 SATA 3 Gb/s 7200 16 500 126.56 3.95
Seagate Momentus ST905003N3A1AS-RK SATA 3 Gb/s 7200 16 500 129.99 3.85
Seagate Momentus XT ST95005620AS SATA 3 Gb/s 7200 32 500 131.84 3.79
Western Digital Scorpio Black WD5000BPKT SATA 3 Gb/s 7200 16 500 5 134.75 3.71
Seagate Momentus 7200.4 ST9500420AS SATA 3 Gb/s 7200 16 500 139.85 3.58
Seagate Momentus 7200.4 ST9500420ASG SATA 3 Gb/s 7200 16 500 159.95 3.13
Samsung Spinpoint M7 HM500JI SATA 3 Gb/s 5400 8 500 159.95 3.13
Seagate Momentus XT STAN500100 SATA 3 Gb/s 7200 32 500 5 159.99 3.13
Toshiba MKxx65GSX Series MK5065GSX SATA 3 Gb/s 5400 8 500 179.95 2.78
IBM 42D0752 SATA 7200 500 300.00 1.67
HP Midline 507750-B21 SATA 3 Gb/s 7200 500 339.30 1.47
Seagate Momentus 7200 FDE.2 ST9500421AS SATA 3 Gb/s 7200 16 500 0.00

Manufacturer's Specs

General
InterfaceSATA 3Gb/s
Guaranteed Sectors976,773,168
Cache16MB
Capacity500 GB
Areal density (avg)394 Gbits/inch2
Performance
Random write seek time13.0 msec
Average latency4.17 msec
Random read seek time11.0 msec
Sustained data transfer rate1,230,000 null
null300 null
Spindle Speed7,200 rpm
Power
5V start max current1.0 amps
Average seek power2.2 watts
Average idle current1.0 watts
Acoustics
Acoustics (Seek Volume)2.6 bels
Acoustics (Idle Volume)2.3 bels
Reliability
Annual Failure Rate0.48
Unrecoverable read errors1 in 10^14
Physical
Width (max)69.85 mm (2.75 inches)
Weight (typical)110 grams (0.238 pounds)
Height (max)9.5 mm (0.370 inches)
Length (max)100.35 mm (3.951 inches)

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