Two part booster includes both the sender and receiver.  The "sender" should be mounted within 5 feet after a light, then you can add up to 200 feet of spacer cable to make a jump.  At the end of your jump, install the "receiver" within 5 feet of the next light.  Signal sender and receiver to jump signal up to 200 ft.  Sender/Receiver booster parts come in black color only.  This signal booster works on both RGBW and RGB light chipsets.