Samsung Spinpoint MP4 HM640JJ (640 GB)

vs Comparable 2.5" SATA Hard Disks
Item 5109: Samsung Spinpoint MP4 640 GB HM640JJ
BrandSamsung
FamilySpinpoint MP4
PartHM640JJ
Size640 GB
Cache16 MB
RPM7200
Form Factor2.5"
InterfaceSATA
Speed3 Gb/s
HM640JJ Reviews2
Disk Cache (MB) Size (GB) Warranty Years Best Price Vendor Value (GB/$)
Samsung Spinpoint MP4 HM640JJ 16 640 0.00

Manufacturer's Specs

General
InterfaceSATA 3.0Gbps
Buffer DRAM Size16 MB
Capacity640 GB
Rotational Speed7,200 RPM
Performance
Drive Ready Time(typical)4 sec
Data Transfer Rate / Buffer to/from Host(Max.)300 MB/s
Data Transfer Rate / Media to/from Buffer(Max.)189 MB/s
Average Seek time(typical)11 ms
Power
Standby (typical)0.2 W
Read/Write (typical)2.5 W
Sleep (typical)0.2 W
Spin-up Current (Max.)1000 mA
Idle (typical)0.85 W
Seek (typical)2 W
Voltage+5V+-5%
Acoustics
Idle2.6 Bel
Performance Seek2.8 Bel
Reliability
Non-recoverable Read Error1 sector in 1014 bits
Physical
Width69.85 mm
Length100.3 mm
Height (Max.)9.5 mm
Weight (avg.)119 g

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