There's a 0.25-inch input jack at one end for the instrument and a locking output at the other that connects directly to the iDevice's dock connector or a Mac's USB port
Personally, the most interesting part of the announcement of the new iPad on March 2 was GarageBand for iPad. Sure, the cool-looking drum kit and dynamic piano are worth a passing mention but my weapon of choice is the guitar. But rather than tap onto the touchscreen's virtual instrument I would prefer to plug in my own. The new JAM input from Apogee will allow me to do just that.