The Midiplus Midilink 2x2 was designed for more extensive MIDI set-ups. It is fitted with 2 MIDI inputs and 2 MIDI outputs, which offers the user 32 MIDI channels in and out. The featured LEDS show which in and out is active. Cable length: 2.5 Meter. Inputs/Outputs: 2 MIDI inputs (32 MIDI channels) / 2 MIDI outputs (32 MIDI channels). Bus mode: USB 1.1 Full Speed MIDI. Power supply: USB Powered, no external feed necessary. Software support: Mac OSX, Windows 7, Vista Ready (no drivers needed).