Features • Enhanced Motor Performance: Upgrade your 3D printer with support for larger 57 or 86 stepper motors, providing increased power and precision for your printing projects • Current Expansion Capabilities: The MKS CD expansion board amplifies flow control signals, ensuring optimal performance and preventing interference with your main IC • Compatible with Major Boards: Seamlessly integrates with Ramps1.4, MKS Gen, and other mainboards, allowing for pressure-free operation of up to 5 large motor drivers • Effortless Installation: Designed for simplicity, this accessory is easy to install, saving you time and hassle when setting up your 3D printing system • Robust Driving Support: Features the MKS TB6600 4.5A motor driver, providing reliable power management for high-performance 3D printing applications Features: 1、Suitable for feel that the 42 stepper motor of the 3D printer is not strong enough, want to change to 57 or 86 motor. 2、MKS CD expansion board can amplify the flow control signal, to avoid motor drive with optical isolation generate press on main IC. 3、Ramps1.4, MKS Gen and other main board with five large motor drive can operate completely without pressure. 4、Simple to use and easy to install, will offer you much convenience when you want to use. 5、With MKS TB6600 4.5A large motor drive and MKS-Gen 3D printed motherboard. Specification: Condition: 100% Brand New Item Type: Stepper Motor Driver Current Expansion Board Material: Plastic Color: As Pictures Shown 4.5A Large Motor Drive: MKS TB6600 3D Printed Motherboard: MKS-Gen Package List: 5 x MKS CD Current Expansion Board 5 x 4Pin Bayonet Cable Package List 5 x MKS CD Current Expansion Board 5 x 4Pin Bayonet Cable