Features: High compatibility: This control board is fully compatible the RAMPS system and can be widely used in various 3D printer devices. Multifunctionality: The control board integrates multiple functions and interfaces, such as motor drive, sensor connection, hot bed control, etc., providing users with rich expansion and customization option. Stable and reliable: The control board adopts high-quality electronic components and precise design, ensuring stable and reliable signals, and providing efficient circuit protections to extend the equipmentlifespan. Easy to operate: Equipped withintuitive wiring terminals and orderly arranged pin markings, users can easily install, debug, and use. Manufacturers and Engineers: Suitable for 3D printer manufacturers and professional engineers who can choose this compatible control board as main control system of their product. Specifications: Item: 3D Printer RAMPS Compatible Control Board Style A: RAMPS 1.4 Control Board Style B: RAMPS 1.5 Control Board Style C: RAMPS 1.6 Control Board Package Includes: 1 Set 3D Printer Control Board note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment.