Specially designed extruder end adapter board for Ender 3 Neo / Ender 3 Pro / Ender 3 Plus / Ender 3 Max and similar 3D printers, ensuring accurate fit and reliable connection to the existing wiring and mainboard. PCB and well-arranged circuitry provide stable signal transmission between the extruder, end and mainboard, helping to reduce printing errors, temperature fluctuations and intermittent disconnections during long prints. Designed as a plug-and-play replacement adapter board. The reserved connectors and screw holes match the original layout, allowing you to upgrade or replace the old or Manufactured with durable PCB material, stable solder joints and quality electronic components to withstand high-temperature end environments and long-term continuous operation of 3D printers. Suitable for restoring normal function to printers with faulty extruder/ end connection boards, as well as for DIY upgrades and modifications. A practical accessory to keep your 3D printer running smoothly and extend its service life. Color: As Shown Material: PCB Package Contents: 1*3D Printer Accessory Kit Only the above package content, other products are not included. Note: Light reflection 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 +/- 1-3cm.