Castle CC011-0173-00 - Castle Link V4 USB Programming Kit for Cobra SeriesCastle Link V4 is our new 32-bit based USB adapter.NOTE: Compatible with Cobra series ESCs only.For all other ESCs, please purchase the Castle Link V3 USB adapter.Program your Cobra 8 ESC on your Windows® PC (10 or higher) with the Castle Link V4 USB programming kit.Set up of programmable options with point and click easeView your current program settingsDownload and view the ESC's onboard data logsUpdate ESCs with new firmware (if available)Set-up instructions:Download the Castle Link 2 software from our Downloads area.Run the Castle Link 2 installer and follow on-screen prompts.Plug the Castle Link V4 adapter into the provided Type-C USB cable.Connect the ESC's receiver lead to the Castle Link adapters prongs; the brown wire connects to the pin marked "GND" or "-".Note: Castle Link Classic program is not compatible with the Castle Link V4 adapter and Cobra 8 ESC.Package includes:Castle Link V4 adapterType C USB