The EMAX AC-1257 is part of the company's line of AC servo motors and drives. The AC-1257 is an all-in-one package that includes an AC servo motor and a brushless AC servo drive. It is designed to provide high-accuracy motion control and automation in machines and industrial equipment. The AC-1257 has a 120W power capacity, a peak torque of 0.180Nm, and a maximum speed range of 2000rpm. It is also equipped with a built-in unique servo tuning software that makes it easy to set up and configure the motor. It is compatible with a variety of industrial networks, including EMAX Network, MODBUS, EtherCAT, and CANopen.