This is the Futaba R3008SB T-FHSS 2.4GHz S.Bus2 8/32 Channel Receiver. It features bi-directional communication with a T-FHSS Air-2.4GHz Futaba transmitter using the S.BUS2 port, standard PWM output ports and S.BUS output ports.
Size: 24.9 x 47.3 x 14.3mm Weight: 10.1g Power Requirement: 4.8-7.4V Battery F/S Voltage: Sets up with a transmitter Extra Voltage Port: 0 ~ 70V DC
Futaba R3008SB T-FHSS 2.4GHz Receiver with Dual Diversity (two) Antennas and Instructions