EC500 4 Axis Motion Controller with Cable for Mach3 with Ethernet Communication

Ethernet Communication with Mach3 software;. Usually it costs about 30USD-50USD. - 18 opto-isolated digital input ports, 16 opto-isolated digital output ports;. - 1 x Cable. - 1 analog output port of 0-10V adjustable speed for spindle (can change to PWM output port);.

eBay