Yes, the Godox AD100PRO is compatible with the Godox X3 flash trigger. The X3 flash trigger supports a wide range of Godox flash units, including the AD100PRO, and allows control via the Godox 2.4 GHz X-System. This means you can use the X3 trigger to wirelessly control the AD100PRO and utilise settings such as TTL, manual control and high-speed sync.