MMatheny, its a Helimax 5 channel that came with the heli. The plug is the same as futaba square from what I have been told. I ordered the cable from amazon, PC USB Interface Cable by GWS - GWFSM002C for $14.95. I found a cheaper one for $10.95, but the website seemed a little flacky, so I decided to be safe and spend a couple extra $$ with a site im familiar with.