ESC firmware can make the difference between super stable flight and erratic flight. This handy USB programming tool allows you to quickly and easily update the firmware of your ESC by connecting directly to the ESC's signal wire and then to the USB port of your PC. With it, there is no need to cut open the heat shrink or use any additional interface components. Simply plug it in and flash!
It's designed to work with the DYS XM series ESCs running the BLHeli bootloader.