The Mellow High-speed Super Pro Board is a 32-bit ARM Cortex-M7 Kernel 168MHz STM32H723ZGT6 Chip with 8 independent motor drives and 5 extruders. It features CANFD support, onboard WiFi, 10 PWM fan support, and replaceable PWM Fan MOS boards for customer maintenance ease. It’s compatible with Reprap/Klipper firmware and can use A4988, LV8729, DRV8225, TMC2208/2209/5160 drivers in either UART/SPI mode, while supporting automatic bed leveling sensors like BLTouch. Limit switch power supply is available in 5V/12V/24V.

SPECIFICATIONS

Wifi Control: Wireless control, File Transfer 1600K+

Origin: Mainland China

Optional limit switch power supply: 5V / 12V / 24V

Motor Input voltage: DC12V-DC24V-DC48V

Model Number: 20S8HV3

Item Type: Motherboard

Firmware: Reprap/Marlin/Klipper

Driver support: A4988, LV8729, DRV8225, TMC2208 / 2209, etc.

Drive mode support: UART / SPI

Chip: 32-bit ARM Cortex-M4 series 168 MHz

Brand Name: Mellow

The safety and quality of the motherboard is recognized by the VzBoT 3D printer, and it is an officially recognized motherboard