Samsung Spinpoint M7E HM641JI 640GB 2.5" 5400 RPM 8MB Cache SATA 3GB/s Internal HDD Hard Disk Drive HM641JI/D.

Samsung Model Number: HM641JI
HDD Part Number: HM641JI/D
Dell Part Number: P7J74 0P7J74 CN-0P7J74
Compatible Part Numbers: C6493-G84A-A



 



Specifications:
 
Disk Family Spinpoint M7E
Form Factor 2.5"
Capacity 640 GB (640 x 1 000 000 000 bytes)
Number Of Disks 2
Number Of Heads 4
Rotational Speed 5400 RPM
Rotation Time 11.11 ms
Average Rotational Latency 5.56 ms
Disk Interface Serial-ATA/300
Buffer-Host Max. Rate 300 MB/seconds
Buffer Size 8192 KB
Drive Ready Time (typical) 4 seconds
Average Seek Time 12 ms