Seagate Momentus 7200.4 ST9500420ASG vs Comparable 2.5" SATA Hard Disks
Item 3481: Seagate ST9500420ASG
Size500 GB
Cache16 MB
RPM7200
Form Factor2.5"
InterfaceSATA
Speed3 Gb/s
ST9500420ASG Reviews1
$ 159.95
Disk Interface RPM Cache (MB) Size (GB) Warranty Years Best Price Vendor Value (GB/$)
Toshiba MKxx59GSM Series MK1059GSM SATA 3 Gb/s 5400 8 1000 114.71 8.72
Toshiba MK7559GSXP SATA 3 Gb/s 5400 8 750 91.95 8.16
Western Digital Scorpio Blue WD7500BPVT SATA 3 Gb/s 5400 8 750 3 98.58 7.61
Western Digital Scorpio Blue WD10TPVT SATA 3 Gb/s 5200 8 1000 3 131.97 7.58
Seagate Momentus ST9640322AS SATA 3 Gb/s 5400 8 640 84.99 7.53
Western Digital Scorpio Blue WD10JPVT SATA 3 Gb/s 5400 8 1000 137.80 7.26
Hitachi 0J11562 SATA 3 Gb/s 5400 8 640 3 89.99 7.11
Hitachi 0J11563 SATA 3 Gb/s 5400 8 750 3 109.82 6.83
Samsung Spinpoint M8 HN-M750MBB SATA 3 Gb/s 5400 8 750 109.99 6.82
Western Digital Scorpio Blue WD6400BPVT SATA 3 Gb/s 5400 8 640 3 99.24 6.45
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
Seagate Momentus ST906403N1A1AS-RK SATA 3 Gb/s 5400 8 640 3 113.98 5.62
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 WD7500KPVT SATA 3 Gb/s 5200 8 750 3 139.99 5.36
Western Digital Scorpio Blue WD5000BPVT SATA 3 Gb/s 5400 8 500 3 94.95 5.27
Western Digital Scorpio Blue WD5000BEVT SATA 3 Gb/s 5400 8 500 3 98.76 5.06
Hitachi Travelstar Z5K500 HTS545050A7E380 (0J11285) SATA 3 Gb/s 5400 8 500 99.99 5.00
Western Digital Scorpio Black WD7500BPKT SATA 3 Gb/s 7200 16 750 5 157.75 4.75
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
Seagate Momentus XT ST750LX003 SATA 6 Gb/s 7200 32 750 178.99 4.19
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 5 134.91 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 500 325.44 1.54

Price History

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Recent Price Changes

2012-02-09 $159.95 +10.00
2012-02-07 $149.95 +25.20
2012-02-04 $124.75 +4.75
2012-02-03 $120.00 +0.01
2012-02-02 $119.99 +9.49
2012-02-02 $110.50 +20.51
2012-02-01 $89.99 -40.00
2012-02-01 $129.99 +40.00
2012-02-01 $89.99 -40.00
2012-02-01 $129.99 +40.00

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
Spindle Speed7,200 rpm
Random read seek time11.0 msec
Power
5V start max current1.0 amps
Reliability
Annual Failure Rate0.5
Physical
Width (max)69.85 mm (2.750 inches)
Weight (typical)110 grams (0.238 pounds)
Height (max)9.5 mm (0.370 inches)
Length (max)100.35 mm (3.951 inches)

External links

Seagate
http://www.seagate.com/

Seagate ST9500420ASG Reviews & Benchmarks

The Tech Report - Today's solid-state drives: The value perspective - Quantifying the value of today's SSD goodness - July 6, 2010

Other Seagate Momentus 7200.4 Reviews & Benchmarks

Review the Tech - Seagate Momentus 7200.4 SATA 3Gb/s 500-GB Hard Drive ST9500420AS - July 12, 2011
X-bit labs - Roundup: 2.5-inch Hard Disk Drives with 500 GB, 640 GB and 750 GB Storage Capacities - June 16, 2010
Silent PC Review - Recommended Hard Drives - April 28, 2010
Silent PC Review - More 500GB notebook drives: Seagate Momentus 7200.4 & Hitachi Travelstar 5K500.B - Nov. 5, 2009
Tom's Hardware - Perfect Notebook Storage: Seven 2.5” 500 GB Drives - June 18, 2009
The Tech Report - Five 2.5-inch hard drives at 500GB - Take your half-terabyte to go - June 5, 2009

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