UX-20 13-pin Splitter/Distributor with Buffered Guitar Input
1.5M Cable 13 Pin DIN MIDI Meter Replacement For Roland GKC5 Guitar Synth GK | eBay
13 Pin DIN Male Plug to Male Plug Midi Cable (Roland GKC equivalent)
EASWEL 1.5M Roland GKC5 Guitar Synth GK Cable 13 Pin DIN MIDI Meter Replacement
13 Pin Output Jack with Traction Switch (PE-0540-00) | Graph Tech Guitar Labs
More Than One 13-pin Device?
BX-13 Updated Roland BC-13 Bus Converter - Universal Design - Roland VG-99 GR-55 Boss GP-10
13 Pin Din Male To Midi Din 13 Pin Female Guitar Pickup Extension Cable - Buy 13 Pin Din Male To Female Cable,13 Pin Din Male To Midi Din 13 Pin Cable,Midi
Zeta MIDI cable, 8 to 13-pin adapter for Roland GR-55
Cable Extension 13 pin For Midi Guitar System GK In - GR Roland 10Ft. LONG | eBay