The controller I'm trying to find more about is about halfway down the page, and is mentioned as being made for Armored Core:
http://www.vidgame.net/SONY/peripherals.htm

Achika commented in another thread a while back that it may work for Ace Combat as well. I bought it used on a whim hoping to get a converter and use it for DC VOOT, but I never got around to it. Now I'm clearing out the stuff I never use and I'd like more info so I can figure out a fair price to sell it for, or what to even call the thing should I try the eBay approach. Any help will be greatly appreciated.

Thanks,
Drew