Roland RMIDI-B20 Black Series MIDI Cable Overview:

Roland’s Black Series MIDI cables, you can connect all your MIDI gear with confidence. Commercial-grade nickel connectors, 4 conductor wires, and high-density shielding provide bulletproof performance, ensuring that every byte of music, timecode, and sys-ex data is always transferred perfectly.

• Commercial-grade nickel DIN connectors
  
• 4 conductor wire
  
• High-density spiral shielding