I recently took the Hitachi hard drive out of my Pavilion dv9000 that I bought in 2007, and it has the strangest connectors I've ever seen. I can't tell if i'ts IDE or SATA; it doesn't use pins, per se, but blades.
It's a SATA connector for HP laptops. Just pull it off and the drive should fit a 2.5 SATA enclosure.
It's proprietary, so you need to buy from HP.
