This is the Velineon VXL3m Electronic Speed Control from Traxxas.
FEATURES: Brushless control
11.1V 3S LiPo battery capability
Low voltage detection
2 stage thermal protection
EZ-Set push button setup
INCLUDES: One VXL3m Electronic Speed Control
REQUIRES: Installation on the vehicle
SPECS: Input Voltage: 6 to 12 cell NiMH, 2S to 3S LiPo
Motors: Sensorless Brushless
Motor Limit: None
Continuous Current: 52A
Peak Current: 326A
BEC Voltage: 6.0V DC
Transistor Type: MOSFET
On-Resistance: 0.0005 ohms
PWM Frequency: 12,000Hz
Motor Connectors: Traxxas 3.5mm bullet connectors
Motor/Battery Wiring: 16-Gauge
Thermal Protection: Two-Stage Thermal Shutdown
Weight: 38g (1.34oz)
BOX DIMENSIONS: 3.13" W. X 2.25" H. X 5.50" L.
BOX WEIGHT: .22 LBS.