This is the Futaba R6202SBW 2.4GHz FASST Dual SBus Receiver.
Two port S.Bus system output and conventional system channel
(2, 3ch) outputs
May also be used with conventional system servos and S.Bus system
compatible servos and gyros
Automatic signal mode recognition (FASST-2.4GHz 7ch mode or
Selectable operating mode, high speed or normal
One year limited warranty through Hobby Services beginning at date of
Futaba R6202SBW 2.4GHz FASST Dual SBus Receiver with Instructions
Dimensions: 0.89 x 1.47 x 0.37" (22.5 x 37.4 x 9.3mm)
Weight: 0.25oz (7.2g)
Operating Voltage: 3.7 - 7.4V
Antenna Length: 5-1/2"