Item No NVK-5320 Description Novak's Plug-In Input Signal Harness: 9.0" (JST-JST) is 9 inches in length and has an industry standard JST plug on each end. This is the replacement input signal harness for any Novak ESC that has a replaceable input harness and accepts a three-pin JST connector on the ESC. The Kinetic, Havoc Pro SC and Mongoose, use a #5304 Plug-In Input Signal Harness: 4.5" (Mini-JST).