This is a compatible Konica Minolta A070131 / TN411K black toner cartridge designed for use with your Konica Minolta Bizhub C451 laser printer. It provides a standard yield of up to 45,000 pages, making it an economical alternative to the original Konica Minolta toner cartridge. Manufactured in an ISO-9001 certified factory, this cartridge is guaranteed to deliver reliable performance and high-quality printing results. The use of compatible cartridges does not void your printer's warranty and is backed by our 100% Quality Satisfaction Guarantee.