Type 4 plug - green 5.5/2.5mm centre positive DC-plug, mainly used in the large modeling pedals from Line 6, Eventide Factor products, pedals from Electro Harmonix designed for 18, 24 or 40V or ex. the red Whammy from DigiTech. Available with angled plug (L-shaped) in three lengths: 30, 50 and 80cm.