Heavy Duty Cords - Hot Shoe HS-15S HH to Hot Shoe 15 feet StraightHousehold (HH) Two Prong Plug: Fits most professional flashes with dual blade receptacle such as Lumedyne, Norman, Braun, and Dynalite. Also, units with three-prong plug such as Dynalite (3 flat blades), Sunpak and Quantum Radio 4i (2 flat blades with 1 round pin in the center).Hot Shoe: Fits most cameras with hot shoe feature. Works with hot shoes that have large center contact. Unique design allows shoe to slide in either way. Cord faces side rather than back to front. The only alternative to the PC.