Western Digital Blue WD50000AAKB 500GB 7200RPM 16MB Cache IDE Ultra ATA100 / ATA-6 3.5" Internal Bare Hard Disk Drive. High-capacity hard drives provide plenty of storage space for files. Bare drives are sold without cables or installation software to offer upfront cost savings.

Specifications:

Brand: Western Digital
Model Number: WD50000AAKB
Part Number: WD50000AAKB-00H8A0
Series: Blue
Interface: IDE Ultra ATA100 / ATA-6
Capacity: 500GB
RPM: 7200 RPM
Cache: 16MB
Average Seek Time: 8.9ms
Average Write Time: 10.9ms
Average Latency: 4.2ms
Form Factor: 3.5"