Griffin StudioConnect Audio and MIDI + Charging Dock for iPad. New in box, I received this and never used it. 30-pin dock iPads are no longer being manufactured. MSRP $109

Web Description:

Whether you're a serious musician, a confirmed hobbyist, or a budding composer, if you've had anything to do with music-making and computers, you've probably bumped into MIDI (Musical Instrument Digital Interface). Now, in one compact device for your iPad, our StudioConnect combines both the audio and the MIDI hemispheres of the audio world. Audio in? Plug your guitar into StudioConnect's monaural 1/4″ instrument jack. Or plug a recorder or mixer into StudioConnect's stereo 3.5 mm input jack. To help you keep things balanced, we've given Audio In its own gain control. Audio out? Equally straightforward, with left and right line-level RCA plugs. StudioConnect even gives you a separate front-panel 3.5 mm stereo headphone jack with its own volume knob, so you can personally monitor what's going in and out. For your MIDI controller or drum pad, StudioConnect's rear panel gives you a standard 5-pin DIN MIDI-in port. For MIDI Out, there's another 5-pin DIN MIDI connector on StudioConnect's rear panel. Connect it to your sequencer, patch bay, or other MIDI gear. This lets you launch your favorite MIDI app and use your iPad as a MIDI controller. StudioConnect is so versatile, you'll be able to concentrate on making music the way you want to work, instead of figuring out how to work around the limitations of your equipment. And as if that weren't enough, StudioConnect even charges your iPad while you play.