This is the FREE THE TONE CM-3510-TRS MIDI CABLE. It's a MIDI cable that connects DIN 5Pin and 3.5mm TRS. The DIN 5Pin side features FREE THE TONE's unique free-angle cap structure, which supports 360-degree angles. The length is 80cm. It's almost unused. Product Site: https://www.freethetone.com/products/detail66/ From a non-smoking, pet-free environment.