This is the Optima 9 9ch 2.4GHz Receiver from Hitec.
FEATURES
Dual LED status indicator with low battery warning
SPC (Supplemental Power Connection)
Telemetry functions (with Hitec Spectra 2.4 module) include
Temperature (4) RPM (2) Fuel Gauge, GPS (speed, altitude,
coordinates)
Fail safe and hold mode
Compatible with Transmitters using Hitec AFHSS (Adaptive Frequency
Hopping Spread Spectrum) 2.4 GHz system
Dual BODA (Boosted Omni-Directional Antenna)
Smart Scan mode selectable selects between normal and scan mode 2.4
signal types
INCLUDES
One Optima 9 2.4GHZ receiver with two BODA antenna holders and
instruction sheet
REQUIREMENTS
Hitec AFHSS 2.4GHz transmitter
SPECIFICATIONS
Dimensions: 1.89 x 1.12 x 0.44" (48 x 28.4 x 10.6mm)
Weight: 0.77oz (22g)
Operating Voltage: 4.8-7.4V from receiver battery power or ESC
4.8-35V using SPC function
Max Current Consumption: 190mA