Seagate ST500VT000 Internal Hard Drive 500 GB 2.5 Inch, 5400 Rpm, SATA

Seagate Video 2.5 HDD ST500VT000 - Hard Drive - 500 GB - intern - 6.4 cm SFF (2.5 " SFF) - SATA-300 - Buffer: 16 MB.

eBay