A: Only USB port 1 will support directly connecting an iOS device to the iConnectivity iConnectMIDI2+ via a 30-pin to USB cable. If you need to hook up two iPads, you have two options:
1. Use the iConnectMIDI4+, which has three USB ports, two of which support connection of an iPad.
2. Use a USB-to-MIDI adapter, such as the iConnectivity iConnectMIDI1, to hook the second iPad up via the MIDI jacks on the back panel of the iConnectMIDI2+.