This is the Futaba R3008SB T-FHSS 2.4GHz S.Bus2 8/32 Channel Telemetry Receiver.
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
One year limited warranty through Hobby Services beginning at date of purchase
Specifications
Size: 0.98 x 1.86 x 0.56" (24.9 x 47.3 x 14.3mm)
Weight: 0.36oz (10.1g)
Power Requirement: 4.8-7.4V
Battery F/S Voltage: Sets up with a transmitter
Extra Voltage Port: 0 ~ 70V DC