Hey RC enthusiasts, building a drone or plane? These QWinOut ESCs are a solid, affordable choice. This is a 6-pack of 40-amp brushless electronic speed controllers. They work with 2 to 4-cell LiPo batteries and have a built-in 5V/3A BEC to power your receiver and servos. They come with the popular SimonK firmware pre-loaded for smooth performance. You get two cable options – we're showing the 'long cable' version here, which doesn't have pre-soldered connectors, giving you the flexibility to add your own (like 3.5mm bullets). They have all the essential protections: low-voltage cutoff, over-heat, and signal loss. Remember to calibrate the throttle range with your transmitter for best results. Perfect for DIY multi-rotors, fixed-wing models, or even RC cars. Having a multi-pack is great for builds or as spares. Just a reliable, no-fuss ESC that gets the job done.