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ZONESTAR ZRIB control board is the combination of MEGA2560 plus RAMPS1.4 and A4982 in 3D printer. It is a feature rich all-in-one electronics solution for RepRap and other CNC devices. It features an on-board ATmega2560. Its five motor outputs are powered by A4982 stepper drivers. It use CP2012 for USB. The board can use the same firmware as Ramps1.4. The input voltage range is 12-24V. It is supplied with a P802N firmware default and you can upload other firmware, such as IDE, Cura etc, through the USB port.Features: A combination of MEGA2560 + RAMPS1.4 + 5 Motor drivers. Firmware can use the same configuration as RAMPS1.4. Support 3D machine upgrade into dual extruders and light engraver. Support upgrade with filament run-out detect and resume function. One of the driver can connect to two Z motors. 4 PWM capable power mosfet outputs with 12 - 24V wide voltage range for MainPower.(Bed, Extruder0, Extruder1, Fans) Recoverable fuse for short-circuit protection. USB driver chip is CP2012.Specifications: Brand: ZONESTAR Voltage: 12V - 24V Item Size: 11 * 9.5cm / 4.3 * 3.7" (L * W) Item Weight: 77g / 2.7oz Package Size: 11.5 * 10 * 2.5cm / 4.5 * 3.9 * 1" Package Weight: 79.5 * 2.8ozPackage List: 1 * Control BoardNote: 1. Before power on, please make sure that the positive and negative is not reversed. 2. Do not plug when the motor and drive is powered on, drive easily lead to burn; do not adjust the current when the motor is running. Disconnect the power first, unplug the motor, and then re-power, adjust potentiometer, measure the voltage on the potentiometer until the measured voltage is the same as expected. Do not insert anti-drive, otherwise it will burn drive, or even burn out the motherboard.