Features: Support out-of-material detection, proximity switch (can support 24V power supply, and no level conversion) and other peripherals brand new and high quality Onboard 4-way TMC2209, supports infinite switch reset, and provides up to 6 motor sockets. Support 5V WS2812 RGB light bar (recommended no more than 5W, that is, no more than 25 lamp beads) Support Raspberry Pi Compute Module 4; Support Creation WIFI BOX Core Board The on-board RepRapDiscount SmartController is for the horn socket for connecting external screens and SD cards, and the Pins function is multiplexed with UART and SPI, which can provide other peripheral connection requirements There are 2 TF card sockets onboard, one is connected to the MCU, the other is connected to the Raspberry Pi/ WIFI BOX Specifications: Motherboard:Cheetah MIX v1.1 Supported Extruder:1 Max Power input : 12V and 24 (recommended 24V, TMC2209 can get better driving effect) Onboard: USB2.0 4-port HUB for U disk, camera, etc. Lead out Raspberry Pi for DSI, CSI, HDMI-compatible, PCIE , providing more for creative possibilities Onboard network port (Raspberry Pi=1000M, Creation WiFi BOX=100M) Supported fans: 5 Max: 2x12V ,3x 24V fans Controllable fan: 3 Max 5v/12v/24v switchable Heating: 2 Max hotend Serial Port Chip: CH340 MCU: STM32F401RCT6 CPU: CM4 or CXSW WIFI Box Driver: 4 Max (TMC2209) Size: approx 155x65mm/6.1x2.56in Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x Cheetah MIX v1.1 for Motherhood