Futaba R6303SB S.Bus High-Speed Micro 3-18 Channel FASST Receiver (Rx) Works with conventional servos as well as S.Bus system compatible servos and gyros High-speed or normal operating mode The receiver recognizes the signal mode (FASST 2.4GHz 7ch mode or 8ch/10ch/Multi Channel Mode) automatically after linking One year limited warranty Includes R6303SB micro receiver and instructions