Whilst the adapter could possibly be used on other consoles,

it has so far only been tested on the ColecoVision

To use it, the VecFlash cart is filled with up to 16 games (by the use of MultiFlash)

It is then plugged into the adapter, which in turn is connected to the ColecoVision console 

via an AtariAge 32K ColecoVision board

Games are then selected by a 4-way DIP switch

 I have built a few to test demand,, if you want to buy one please Email me