The SP-400 is compatible with any 4mm [0.155 inch] cable diameter or less. Popular SP400-compatible cables include: Belden 1865A, Belden 8218, BTPA CA 0492, BTPA CA 0678, Bill Lawrence BL-150, Canare GS-4, Evidence Audio Monorail, Free the Tone CU-418, George L's 155, Lava Mini Tightrope, Mogami 2314, Sommer SC-ONYX TYNEE.
The SP400 plug is compatible with the following popular switching systems: VoodooLab Pedal Switcher, PX8, PX8 Plus, HEX, RJM PBC, Mini Effect Gizmo, MusicomLab 6M, 62M, 8L, MKIV, MKV, Providence Audio PEC-4V, PEC-2, IdeaBench Switcheroo, Carl Martin Octaswitch, Octaswitch mkii, Vinteck V8, Cusack Music: PBT9, PBT6 [Not Compatible with The GigRig G2 and Boss ES5/8].