The Smart Tank Plus 651 Printhead X4E75A M0H50A is a small, multicolor printer ink cartridge designed for use with the Smart Tank 500 printer. This compatible printhead features a 1002-page yield and is made by the brand Derplin. With a package size of 4x3x2 inches and a weight of 0.3 pounds, this ink cartridge is ideal for printing A4-sized documents with crisp, black ink. The water-based ink ensures high-quality prints without any smudges or bleeding, making it a reliable option for all your printing needs.