Kick harness
SET OF ADDITIONAL CONNECTORS THAT ALLOW ARCADE PCBS TO HAVE EXTRA INPUTS BEYOND WHAT THE JAMMA WIRING STANDARD ALLOWS
Extra harness; Plus harness
The kick harness, also known as the extra harness or plus harness, is a set of additional connectors that allow arcade PCBs to have extra inputs beyond what the JAMMA wiring standard allows. A typical JAMMA PCB supports only 1 joystick and 3 buttons each for 2 players.