This is the EVX2 Foward/Reverse Speed Control from Traxxas.

FEATURES:
blue case with black anodized heatsink fins
Traxxas high-current connectors
EZ-set push button setup
Three programmable drive profiles
Thermal shutdown protection
16.8 volts of power
Microprocessor controlled
Patent-pending training mode

INCLUDES: One EVX2 speed control w/ motor and battery leads

REQUIRES: Installation

SPECS:
Input Voltage: 6-14 cells (7.2-16.8 volts DC)
Case Size: 2.27"W x 2.00"D x 1.05"H (58 x 51 x 27mm)
Weight (heat sinks/no heat sinks): 4.1 oz (116g) / 3.6 oz (102g)
Motor Limit (550 size): 19 turns (molex)
12 turns (High-Current Connectors)
On-Resistance (Forward & Reverse): .004 ohms
Rated Current (Forward & Reverse): 180A Braking Current: 360A
Continous Current: 30A
BEC Voltage: 6 volts DC
BEC Current: 2.5A
Power Wire: 14 gauge/3" (76mm)
Input Harness Wire: 26 Gauge/9.5" (241mm)
Transistor Type: MOSET
PWM Frequency: 1700 Hertz
Protection: Thermal Shutdown