[AlphaX](https://www.alphaxpr.com/) [Pinout](https://rusefi.com/docs/pinouts/hellen/alphax-4chan/) [iBom rev A](https://rusefi.com/docs/ibom/alphax_4ch-a-ibom.html) [iBom rev B](https://rusefi.com/docs/ibom/alphax_4ch-b-ibom.html) [Issue tracker & hardware files](https://github.com/rusefi/alphax-4chan) * 4 injector channels * 5 auxiliary low side outputs up to 5A * 4 logic level coil control * 2 VR inputs * 3 Hall inputs * CAN * ETB * one channel knock input * Bluetooth ![x](https://rusefi.com/forum/download/file.php?id=9345) ## Changelog rev B: - one channel knock input added rev A: - it works! https://youtu.be/egtDQsMDQqs