The T-MOTOR F55A Pro II is a 4-in-1 ESC designed for FPV and multirotor drones. It supports 3–6S LiPo, provides 55A continuous current per channel and uses a 32-bit ESC platform with active cooling through its heatsink design. T-MOTOR specifies 75A burst current and a 10V/2A BEC for this model
The T-MOTOR AIR 20A 3–4S ESC is a compact electronic speed controller designed for multirotor UAV propulsion systems. It is intended for 3–4S LiPo setups and provides up to 20A continuous current in a lightweight package. T-MOTOR lists it as an AIR Series multirotor ESC.
The T-MOTOR AT115A is a high-current ESC designed for 6–14S LiPo VTOL and fixed-wing UAVs. It combines fast throttle response, programmable parameters and an integrated switching BEC for powering aircraft electronics and servos.