What Relay do I need for the Mach3 usb motion card?

You will need a 24V DC Solid State Relay to accompany the Mach3 USB Motion Card as the outputs on that motion card requires a 24V Power Supply. Until we start supplying this relay, you can find these relays here: https://www.mcmaster.com/#relays/=1d535ws The Mach3 USB Motion card link: https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board Additional Information: Specifically, you will need a relay link this one: https://www.mcmaster.com/#7170k1/=1d536ko Additional Information: This one has an easier method of connecting: https://www.mcmaster.com/#7266k38/=1d53765