gdgt

We have a solution we're working on to track more detailed ownership of sub-models (what we call alternate configurations) but it didn't seem to make sense to bifurcate the PlayStation community. Don't you think?

10000 was the original Japanese model that had a type III pc card slot for future expansion.

30000 was model original model out in north america and europe. It used a 3.5" expansion bay.

50000 brought some major changes. Firewire was dropped, while an IR sensor was added along with expanded disc read capabilities. Many shipped with a network adapter in the box.

70000 series was the first full redesign. Networking was now built in, hard drive support was lost. The power supply moved external, some accesories were redesigned to work with them, and discs were top loaded like an original PS1.

90000 is the latest version and a refresh of the slim design. The power supply has been moved back internally, the exterior was been given a new two tone look and the vertical stand was redesigned to be like the original.

For all the hacking i have done, i never even thought about the ability to add a hard drive to the ps2, i maybe buying another fat one or a slim for my girlfriend to play.