Features: Brand new and high quality High- performances processor: 32bit 150MHz LPC5528 processor is adopted to provide powerful computing and control capabilities to ensure accurate printing operation. Stability and reliability: The control board has stable performances and reliable circuit design, which can run stably and ensure the printing quality. Wide compatibility: The control panel is suitable for many mainstream 3D printer models and can be used as an upgraded or replacement accessory. High-speed processing: equipped with a high- performances processor of 150MHz, it can quickly process complex printing instructions and improve printing efficiency and accuracy. Rich interfaces: The control panel provides rich extended interfaces to support the connection of various sensors, display screens, driver and other external devices to achieves more functions. Specifications: Material:PCB Type:A/B Size:Approx.110x84mm/4.33x3.31inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Control Board