This high-quality ARRMA MEGA SRS 3-IN-1 unit will provide consistent and safe power control in your ARRMA vehicle. Features Capable of running 2S Li-Ion 2S LiPo or 6 cell NiMh this MEGA SRS 3-in-1 unit has overvoltage protection for safe voltage management when under heavy operating pressure - Integrated ESC radio receiver and servo control electronics in one compact unit - Cool-looking integrated black-anodized heat-sink for increased heat dissipation when under heavy usage - Durable motor and battery connection cables for safe and reliable power transfer - Waterproof power switch - Rubber covers for servo plug sockets - Simple battery type selection using jump connector - Strong and durable red nylon case with dedicated chassis mounted holes for added security of fit - Etched ARRMA livery for cool looks and quality assurance - Can use ADS-5 SRS 5-wire or standard 3-wire servo SPECIFICATIONS: Continuous Current Capacity: 40A Battery Modes: Li-Ion LiPo and NiMH (User Selectable) Compatible Batteries: 7.4V (2S) Li-Ion 2S LiPo 6-7 cell NiMH BEC Voltage (5-wire and 3-wire socket): 5V BEC Current (5-wire and 3-wire socket): 1A Length: 56mm / 2.2 Width Including Tabs: 54.5mm / 2.15 Height: 24.6mm / 0.97 For full details please see our MEGA SRS Power Systems Page here: https://www.arrma-rc.com/power-systems/latest/megasrs Includes 1 x MEGA SRS 3-In-1 unit.