LIANXUE 3D Printer 3.0 H7 Mainboard — STM32H723VGT6, 550Mhz, 24V/48V, 120uF/63V Caps

This LIANXUE 3.0 H7 mainboard is an upgraded replacement for the original 3.0 F446 controller, swapping in an STM32H723VGT6 running at 550Mhz for higher performance. Driver circuitry has been revised so all drivers support optional 24V or 48V power supplies to satisfy higher-voltage and faster-speed requirements. Key updates vs the F446 version: STM32H723VGT6 processor, 550Mhz, separate motor power input, 60V maximum (one MOSFET output removed). Motor drivers feature per-driver voltage selection, and each motor driver is fitted with 120uF/63V capacitors to stabilize motor power. Extras include DotStar color LED support and a USB A 5V power output for accessories. The board’s revised power layout and upgraded microcontroller improve printer responsiveness and allow more flexible power configurations while keeping essential connectivity and customization options.