Hobbywing QuicRun 880 Waterproof Dual Brushed Crawling ESC. 

Features:

• Fully waterproof design for all conditions. (Note: Please clean and dry it after use for avoiding rusty connectors).
• HOBBYWING patented copper heat-conductive plates attached to the MOSFET board allows the internal heat to be quickly transferred to the aluminum heat sink for great heat dissipation.
• Built-in switch-mode BEC with cont. current of 4A.
• Tunable drag brake and drag brake rate for different vehicles, tracks, and control feel.
• Adjustable PWM frequency combined with advanced freewheeling (/DEO) technology guarantees great throttle linearity and driving feel.
• 9 levels of acceleration/ punch from soft to aggressive for different vehicles, tires and tracks.
• Proportional brake with 9 levels of initial brake force, maximum brake force, and drag brake force.
• Multiple protections: low-voltage cutoff protection, thermal protection, and throttle signal loss protection.
• Separate programming port to easily connect the LED program card to the ESC.
• ESC programming via HOBBYWING LED Program Card. 

Specifications:

• Cont./Peak Current: 80A/400A
• Motor Type Supported: Brushed Motor (540, 550, 775 Size Motor)
• Applicable Car: 1/10th Vehicles & MOA style comp crawlers
• Motor Limit:
  • Brushed Motor Limit with 2S LiPo /6S NiMH: ≥ 12T or RPM<[email protected] (540, 550 Size Motors)
  • Brushed Motor Limit with 3S LiPo /9S NiMH: ≥ 18T or RPM<[email protected] (540, 550 Size Motors)
  • Brushed Motor Limit with 4S LiPo /12S NiMH: ≥ 24T or RPM<[email protected] (540, 550 Size Motors)
• LiPo / NiMH Cells: 2-4S LiPo or 5-12S NiMH
• BEC Output: 6A@4A (Switch-Mode)
• Connectors: Input End: No Connectors; Output End: 4.0mm Female Bullet Connectors
• Size/ Weight: 45.9x34.7x26.5mm/ 75g
• Programming Port: Separate Port
• Waterproof: Yes