Seagate ST9500325AS Momentus 5400.6 500GB 2.5" 5400RPM 8MB Cache SATA 3Gb/s Laptop HDD Hard Disk Drive 9HH134-286.
Storage Capacity: 500 GB
Rotation Speed: 5.4K RPM
Storage Interface: SATA 3.0 Gb/s
Cache: 8 MB
Form Factor: 2.5"
Type: Laptop Hard Disk Drive
Features: QuietStep Technology, Ramp Load Technology, Native Command Queuing (NCQ), Perpendicular Magnetic Recording (PMR).