This is the Viper R/C VTX10R Sensored Brushless ESC. Viper’s VTX10R electronic speed controller for 1/10 and 1/12-scale RC cars and trucks gives you more features and innovations to make your on-road and off-road RC cars not only ready to run, but ready to compete! The revolutionary V-PORT interface allows you to easily manipulate your ESC settings via the optional VIPER ProGauge without unplugging the receiver connector. The small footprint allows for a variety of mounting options, while the waterproof aluminum case provides maximum durability.

Features:

• True sensored system
• Dynamic drag brake setting by motor RPM and curve profiles
• Dynamic timing boost for competitive track conditions
• Detailed throttle punch/curve setting
• SBEC up to 7.0V for the best steering response
• Battery cut off, ESC temperature, and motor temperature protection
• LED indicator for STOCK/MODIFIED class race
• Auto time-out power off
• Waterproof case
• VIPER Software for firmware upgrade (link device sold separately)
• 8 Default standard set up profiles that allow quick set up without ProGauge for easy bashing enjoyment
  

Specifications:
Model: VTX10R
ON Resistance: 0.000225Ω * 2
Battery Support: 2~3S Li-Po   
Max Peak BEC voltage/amp: 7V / 5A
Motor Limit: 36mm/ 2.5T
Dimensions (WxLxH): 30x32.5x19.5mm