This is the Futaba R6303SB 3-18 Channel FASST 2.4GHz S.Bus Micro Receiver.
S.Bus system output and three conventional system channel outputs
allows usage with conventional servos as well as S.Bus system
compatible servos and gyros
When linking procedure is performed, receiver recognizes the signal
mode (FASST 2.4GHz 7ch mode or 8ch/10ch/Multi Channel Mode)
High-speed or normal operating mode
One year limited warranty through Hobby Services beginning at date of
Futaba R6303SB 3-18 Channel FASST 2.4GHz S.Bus Micro Receiver and
Power Requirement: 3.7-7.4V, Usable voltage 3.5-8.4V
Dimensions: 0.89 x 1.47 x 0.37" (22.5 x 37.4 x 9.3mm)
Weight: 0.25oz (7.2g)
Antenna Length: 6"