This Permanent Toner Chip is compatible with Pantum P2506, P2506W, M6506N, and M6606 printers. With the NT-C216 Unlimited Page model, you can print without worrying about running out of toner. This toner cartridge chip is easy to install and ensures that your printer runs smoothly. It is perfect for those who need to print frequently and in large quantities. The chip is made of high-quality materials, ensuring that it lasts for a long time. Upgrade your printing experience with this reliable and efficient toner chip.