http://bspeclabs.com/Pictures/AKI3.jpg
A new USB encoder is now available from B-Spec Labs. The AKI 3.0 USB Interface, successor to the AKI and SJC interfaces, is a user-configurable encoder which currently supports analog, digital, and 49-way joysticks, as well as joystick to keyboard, and joystick to mouse conversion. For more details, read the product description Here.
Source Arcade controlls.
