XANTECH 172-94X/RP Xtra Link2 Xpansion Kit Used in conjunction with Xantech's 17294RP kit for multiple-room installations Avoid duplication of couplers, emitters and coax jumper cables The kit includes 1 291 infrared receiver, 1 INJ94 injector, 1 781ERGPS power supply, and 1 coax jumper cable with RF connectors