500GB Seagate 2.5 inch 5400 RPM 8MB Cache. This 2.5 inch internal hard drive from Seagate can be installed into the MacBook, MacBook Pro, and Mac mini Intel machines.
Specifications:
500GB SATA II 5400 RPM 8MB Buffer 2.5" MacBook Pro Hard Drive
Seagate Model Number: ST9500423AS
Performance:
Rotational Speed: 5400 RPM
Buffer Size: 8MB
Transfer Rate:
Serial ATA (G/s): 3.0G/sec
Average Seek: < 11ms
Average Latency: 4.17ms
Warranty: 3 Year Seagate Factory Warranty