Amazon.com: PK Power AC/DC Adapter for M-Audio Midiman Midisport Midi Man Midi Sport 8x8 8x8s 4x4 2x2 Multi-Port USB MIDI Interface Power Supply Cord Cable PS Charger Mains PSU : Musical Instruments
M-Audio MidiSport 4x4 USB MIDI Interface - Evolution Music
M-Audio MIDISPORT 4X4 Anniversary Edition - 4-in/4-out USB MIDI Interface
File:Some more music gear - Korg MS20, Clavia Nord MicroModular, M-Audio Midisport 4x4, Philip Rees MIDI-CV thing, Akai SG01v, Roland Juno-6.jpg - Wikimedia Commons