Seagate Momentus 7200.4 ST9500420AS (500 GB)

vs Comparable 2.5" SATA Hard Disks
Item 1541: Seagate Momentus 7200.4 500GB ST9500420AS
BrandSeagate
FamilyMomentus 7200.4
PartST9500420AS
Size500 GB
Cache16 MB
RPM7200
Form Factor2.5"
InterfaceSATA
Speed3 Gb/s
ST9500420AS Reviews6 (avg: 4.5/5)
Disk Interface RPM Cache (MB) Size (GB) Warranty Years Best Price Vendor Value (GB/$)
Hitachi Travelstar 5K1000 HTS541010A9E680 SATA 6 Gb/s 5400 8 1000 63.83 15.67
Samsung Spinpoint M8 ST1000LM024 SATA 3 Gb/s 5400 8 1000 64.90 15.41
Toshiba MQ01ABD075 SATA 3 Gb/s 5400 8 750 49.00 15.31
Western Digital Blue WD10JPVX SATA 6 Gb/s 5400 8 1000 2 65.99 15.15
Western Digital Blue WD7500BPVX SATA 6 Gb/s 5400 8 750 2 51.85 14.46
Toshiba PH2100U-1I54 SATA 6 Gb/s 5400 8 1000 69.98 14.29
Toshiba MQ01ABD100 SATA 3 Gb/s 5400 8 1000 69.99 14.29
Western Digital Scorpio Blue WD7500BPVT SATA 3 Gb/s 5400 8 750 3 53.00 14.15
Seagate Momentus LP STBD1000100 SATA 5400 1000 75.00 13.33
Hitachi 0J11563 SATA 3 Gb/s 5400 8 750 3 59.90 12.52
Toshiba HDKBB097 SATA 5400 8 750 61.09 12.28
Western Digital Red WD10JFCX SATA 6 Gb/s 16 1000 3 81.99 12.20
Western Digital Scorpio Blue WD6400BPVT SATA 3 Gb/s 5400 8 640 3 52.92 12.09
Western Digital Red WD7500BFCX SATA 6 Gb/s 16 750 3 63.24 11.86
Western Digital WDBMYH0010BNC-NRSN SATA 3 Gb/s 5400 8 1000 84.99 11.77
Western Digital Blue WD7500LPCX SATA 6 Gb/s 5400 16 750 2 63.99 11.72
Western Digital Scorpio Blue WD10JPVT SATA 3 Gb/s 5400 8 1000 2 86.00 11.63
Western Digital AV-25 WD10JUCT SATA 3 Gb/s 5400 16 1000 3 87.99 11.36
Toshiba HDKBB97 SATA 5400 8 750 66.06 11.35
Samsung SpinPoint MT2 HM100UI SATA 3 Gb/s 8 1000 89.00 11.24
Toshiba HDKGB05 SATA 5400 1000 89.27 11.20
Western Digital Black WD7500BPKX SATA 6 Gb/s 7200 16 750 5 67.33 11.14
Toshiba MQ01ABD050 SATA 3 Gb/s 5400 8 500 45.65 10.95
Western Digital Blue WD5000LPVX SATA 6 Gb/s 5400 8 500 2 45.92 10.89
Western Digital Scorpio Blue WD7500KPVT SATA 3 Gb/s 5200 8 750 3 69.00 10.87
Samsung HN-M640MBB SATA 3 Gb/s 8 640 59.00 10.85
Western Digital Scorpio Blue WD5000LPVT SATA 3 Gb/s 5400 8 500 2 46.75 10.70
Hitachi Travelstar 0S02858 SATA 3 Gb/s 7200 500 46.99 10.64
Hitachi Travelstar H2IK500854SP SATA 3 Gb/s 5400 500 47.28 10.58
Samsung Spinpoint M8 HN-M500MBB SATA 3 Gb/s 8 500 48.00 10.42
Western Digital Scorpio Blue WD5000BPVT SATA 3 Gb/s 5400 8 500 3 49.89 10.02
Hitachi 0J11561 SATA 3 Gb/s 5400 8 500 3 49.94 10.01
Hitachi Travelstar Z5K500 HTS545050A7E380 (0J11285) SATA 3 Gb/s 5400 8 500 49.99 10.00
Toshiba MQ01ABF050 SATA 6 Gb/s 5400 8 500 50.25 9.95
Seagate Momentus 5400.6 ST9500325AS SATA 3 Gb/s 5400 8 500 52.99 9.44
Hitachi Travelstar Z7K500 HTS725050A7E630 SATA 6 Gb/s 7200 32 500 53.00 9.43
Western Digital Scorpio Black WD7500BPKT SATA 3 Gb/s 7200 16 750 5 79.99 9.38
Toshiba MKxx76GSX Series MK6476GSX SATA 3 Gb/s 5400 8 640 1 69.00 9.28
Toshiba PH2050U-1I54 SATA 6 Gb/s 5400 8 500 54.99 9.09
Hitachi Travelstar 7K750 0J12281 SATA 3 Gb/s 7200 16 500 55.00 9.09
Toshiba MK6459GSX SATA 5400 650 3 72.00 9.03
Seagate Momentus ST905003N1A1AS-RK SATA 3 Gb/s 5400 8 500 56.94 8.78
Western Digital Black WD5000BPKX SATA 6 Gb/s 7200 16 500 5 56.95 8.78
Seagate ST500LM021 SATA 6 Gb/s 7200 32 500 58.05 8.61
Western Digital AV-25 WD5000BUDT SATA 3 Gb/s 5400 32 500 3 59.99 8.33
Samsung HN-M101MBB SATA 3 Gb/s 8 500 63.25 7.91
Western Digital Scorpio Black WD5000BPKT SATA 3 Gb/s 7200 16 500 5 63.85 7.83
Toshiba MKxx65GSX Series MK6465GSX SATA 3 Gb/s 5400 8 640 82.00 7.80
Samsung Spinpoint M7E HM501II SATA 3 Gb/s 5400 8 500 65.00 7.69
Hitachi Travelstar 7K500 HTS725032A9A364 SATA 3 Gb/s 7200 16 500 3 65.00 7.69
Western Digital WDBMYH5000ANC-NRSN SATA 3 Gb/s 5400 8 500 65.20 7.67
Western Digital Scorpio Black WD5000BEKT SATA 3 Gb/s 7200 16 500 5 65.45 7.64
Seagate Momentus 7200.4 ST9500423AS SATA 3 Gb/s 7200 16 500 68.95 7.25
Seagate Momentus 7200.4 ST9500420AS SATA 3 Gb/s 7200 16 500 69.95 7.15
Western Digital Product Line:AV-25 WD5000LUCT SATA 3 Gb/s 5400 16 500 70.99 7.04
Seagate ST500LM000 SATA 6 Gb/s 64 500 72.95 6.85
Toshiba MKxx65GSX Series MK5065GSX SATA 3 Gb/s 5400 8 500 76.00 6.58
Western Digital Laptop Mainstream WDBMYH5000ANC SATA 3 Gb/s 5400 8 500 79.80 6.27
Hitachi 0Y30055 SATA 3 Gb/s 5400 8 500 3 81.21 6.16
Lenovo ThinkPad 43N3423 SATA 3 Gb/s 7200 16 500 83.67 5.98
Seagate Constellation ST9500530NS SATA 3 Gb/s 7200 32 500 5 85.46 5.85
Toshiba MKxx56GSY Series MK5056GSY SATA 3 Gb/s 7200 16 500 95.00 5.26
Toshiba MK5059GSX SATA 500 3 95.00 5.26
HP Midline 507750-B21 SATA 3 Gb/s 7200 500 99.00 5.05
Seagate ST500LT032 SATA 6 Gb/s 5400 16 500 119.67 4.18
Seagate Constellation.2 ST9500620NS SATA 6 Gb/s 7200 64 500 121.60 4.11
Western Digital AV-25 WD5000BUCT SATA 3 Gb/s 5400 16 500 3 129.95 3.85
Toshiba MK5059GSXP SATA 3 Gb/s 5400 8 500 129.99 3.85
Seagate Momentus XT STAN500100 SATA 3 Gb/s 7200 32 500 5 139.99 3.57
Toshiba MKxx61GSYN Series MK5061GSYN SATA 3 Gb/s 7200 16 500 3 144.95 3.45
Seagate Momentus XT ST95005620AS SATA 3 Gb/s 7200 32 500 145.00 3.45
Western Digital Product Line:VelociRaptor WD5000BHTZ SATA 6 Gb/s 10000 64 500 5 152.99 3.27
Samsung Spinpoint M7 HM500JI SATA 3 Gb/s 5400 8 500 169.95 2.94
Western Digital Scorpio Blue WD5000BEVT SATA 3 Gb/s 5400 8 500 3 199.95 2.50
IBM 42D0752 SATA 7200 500 199.99 2.50
Seagate Constellation.2 ST9500621NS SATA 6 Gb/s 7200 64 500 209.86 2.38
Seagate Momentus Thin ST500LT012 SATA 1.5 Gb/s 5400 16 0 45.00 0.00
Hitachi Travelstar HTS725025A9A364 SATA 3 Gb/s 7200 16 0 59.99 0.00
Toshiba MQ01ABF050H SATA 6 Gb/s 5400 32 500GB/SLC 8GB 79.99 0.00

Price History

Recent Price Changes

2014-04-07 $69.95 -4.68
2014-04-06 $74.63 -5.32
2014-04-04 $79.95 +10.00
2014-03-26 $69.95 -5.05
2014-03-25 $75.00 -20.00
2014-03-24 $95.00 -24.00
2014-03-20 $119.00 +39.00
2014-03-18 $80.00 -39.00
2014-03-18 $119.00 +61.01
2014-02-01 $57.99 -0.50

Manufacturer's Specs

General
InterfaceSATA 3.0Gb/s
Guaranteed Sectors976,773,168
Cache16 MBytes
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 ST9500420AS Reviews & Benchmarks

Review the Tech - Seagate Momentus 7200.4 SATA 3Gb/s 500-GB Hard Drive ST9500420AS (9/10) - July 12, 2011
Silent PC Review - More 500GB notebook drives: Seagate Momentus 7200.4 & Hitachi Travelstar 5K500.B - Nov. 5, 2009

Other Seagate Momentus 7200.4 Reviews & Benchmarks

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