This is a Compatible Okidata 42127401 High Yield Yellow Laser Toner Cartridge designed for use with Okidata Laser Printers. It replaces the original Okidata 42127401 Laser Toner Cartridge and delivers a yield of up to 5,000 pages. Manufactured with 100% new components, this cartridge is an economical alternative to the original, providing significant savings without compromising on quality. The use of compatible cartridges does not void your printer warranty. We back this product with a 100% Quality Satisfaction Guarantee.