The MSE HP C4127X / 27X High Yield Toner cartridge is a reliable and efficient printing solution for HP 4000 and 4050 printers. With a page yield of up to 15,000 pages, this black toner cartridge is designed for high-volume printing tasks. Made by MES, a trusted brand in the industry, this unit is compatible with HP printers and ensures crisp and clear printouts with its laser print technology. Manufactured in China, this high-yield toner cartridge is a cost-effective choice for businesses and individuals seeking consistent and professional results in their printing endeavors.