If you bought a Chinese machine, and need a kit to converti it to the best controller available these packages are tough to beat.

Solderelss, and include 10ft. DB9 cables requiring ZERO soldering or building cables. Simply screw the four motor wires to the motor connectors, and your ready to make chips! One package with motors, and one with the power supply only.

Gecko G540 Controller Rev 8 48V 12 5A s 600 48V Solderless Package | eBay

Gecko G540 Rev 8 48V 12 5A 3 NEMA 23 300oz in Solderless Package | eBay