M-Audio Midiman Midisport 4x4 Usb Midi Interface + MIDI Cable + USB Cord | eBay
Used Midiman MIDISPORT 4X4 Accessories - Keyboards/Midi
Tascam Us-4x4 Hr Professional Usb Audio / Midi Interface With 4 Mic /line Inputs,four Outputs And Loopback Function For Producer - Microphone Accessories - AliExpress
M-Audio Midisort 4x4 4 Port Midi Interface | PSSL ProSound and Stage Lighting