HPI Racing brand HPI Sc-3sWP2 Waterproof Electronic Speed Control.

For use with brushed motors down to 8 turns
Suitable for all types of 1/10 scale vehicles
May be powered by 2-3S LiPos, or 5-9 cell NiMh NiCd batteries by
changing jumper plugs
Reverse function enabled/disabled with the included jumper plugs
Fail safe protection if throttle signal is lost for more than 0.1
second
Automatic throttle range calibration
Low voltage cutoff
Built-in capacitors prevent signal loss from low voltage

HPI Sc-3sWP2 ESC with Tamiya type Battery Connector, Female Bullet
Motor Connectors, On/Off Switch, Receiver Connector and
Instructions

Forward Continuous Current: 40A
Forward Burst Current: 180A
Reverse Continuous Current: 20A
Reverse Burst Current: 90A
Input: 2-3S LiPo, 5-9 cell NiMh /NiCd
Motor Limit: 2S LiPo or 6 cell NiMh 540 or 550-size brushed motor
greater than or equal to 12 turn, RPM over 30, 000 at 7.2v
Motor Limit: 3S LiPo or 9 cell NiMh : 540 or 550-size brushed motor
greater than or equal to 18 turn, RPM over 20, 000 at 7.2v
Resistance: FWD 0.002 Ohm, BWD 0.004 Ohm
PWM Frequency: 1 KHz
1.4 x 1.2 x 0.69 (36 x 29.5 x 17.5mm)
Weight: 1.44oz (41g)