M-Audio Midiman Midisport 2X2 USB MIDI Interface MIDISPORT 2x2 is a multi-port MIDI interface for USB-equipped PC and Apple computers MIDISPORT's high-speed USB (Universal Serial Bus) connection to the computer assures reliable, immediate MIDI transfers Installation is a breeze -- no computer disassembly, no jumpers to set, no I/O Addresses, IRQ's or DMA channels to configure Expansion is just as easy -- just plug in additional MIDISPORT units for more MIDI ports 2-in-2 out MIDI Interface (32x32 MIDI channels)