This is a compatible replacement for the Canon 6449B001 (CLI-251XL) high-yield cyan ink cartridge. It delivers a page yield of up to 660 pages, ensuring you have plenty of ink for your printing needs. The cartridge is equipped with a brand new chip that allows you to monitor your ink levels accurately. This economical option meets the original specifications and performance standards of Canon cartridges. Backed by our 100% Quality Satisfaction Guarantee.