Description: High Performance: V3.0 motherboard drive, H723 main control chip; 550MHZ STM32H723Features: Motherboard drive, full drive compatible 24V motor and 48V motor power supply, cap free switch, simple and convenientMotherboard Drive: Stepper motor voltage selection cap, 1-2 connection is 24V, 2-3 connection is 48V, select through capPremium Material: Motherboard drive uses quality PCB material and can be used for a long timePackage Includes: 1 motherboard, 1 connecting cable, 1 USB cable Specification: Material: PCB MaterialPackage Size: 19.5cmx10.5cmx3.5cm/7.68inchx4.13inchx1.38inch Package Includes: 1 Motherboard1 Connecting Cable1 USB Cable Note: Please allow slightly errors 1-2cm differences due to manual measurement.