Features: brand new and high quality 1. The RUMBA32 control board relies on Marlin 2.0's 32-bit support is a brand new control board from Aus3D. which is evolving rapidly, so documentation and configuration settings may change. 2. RUMBA+ hardware design is adopted and upgraded with a new processor: STM32F446. It has a clock frequency of 180MHz, 512Kb of flash memory and 128Kb of SRAM, all of which are built on the high-performance ARM architecture. 3. RUMBA32 is a 32-bit control board, it supports common character and graphic LCDs. 4. RUMBA32 supports standard stepper drivers, such as A4988, DRV8825, etc., but it also has additional SPI driver support: just change the jumper under any driver, and you can use SPI-based stepper drivers, such as TMC2130-no need for Extra wiring! 5. RUMBA32 is a 32-bit control board running Marlin 2.0, performance upgrade,comfortable and familiar Specifications: Product name: RUMBA32 main control board Input voltage (recommended): 12-24V Input voltage (limit): 6-35V Stepper driver: 6 (support SPI socket type StepStick) MOSFET output: 6 Maximum bed current: 20A Maximum heater current: 5A Number of thermistor connections: 5 Limit switch: 6 Firmware: Marlin bufix-2.0 Material:plastic Colour:White + Green Size:approx 135x75mm/5.3x2.95in Note: Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 0-3cm. Package includes: 1 X Rumba Main Control Board 1 X Usb Data Cable