This is the AE-2 Forward/Reverse Esc with Drag Brake.
FEATURES: Forward, Reverse and Drag Brake Function
Preinstalled motor leads and Tamiya type battery connector
Universal receiver connector
Programmable using the Castle Creations Castle
LiPo cutoff set up from factory
INCLUDES: AE-2 Forward/Reverse ESC with Drag Brake
REQUIRES: Installation on the Rock Crawler
SPECS: Input Voltage: 6 cell Nickle/2S Lipo
Dimensions: 1.7 x 1.24" (43.2 x 34.5)
Weight: 1.6oz (45g)
Motor: 19T or greater
On-Resistance FET: 0.0018ohms
Rated/Peak Current: 106A Peak
Braking Current: 106A
BEC Voltage/A: DC 5V/2A
PWM Frequency: 6K Hertz
BOX DIMENSIONS: 3.88" W. X 1.75" H. X 5.00" L.
BOX WEIGHT: .14 LBS.