The EK-RGB Extension Cable allows users to extend one RGB source so that they can build an aesthetically beautiful lighting system. It features standard 4-pin RGB headers and the male-male connector pins are also included in the packaging. The extender cable can be used with any standard 4-pin 12V RGB controller or any of popular RGB sync technologies from all major motherboard manufacturers. The arrow marking on the 4-pin LED connector is to be aligned with the +12V marking on the RGB header. Please refer to motherboard manufacturer manual or RGB controller manufacturer manual for LED type compatibility, maximum power load and maximum allowed LED strip length.