This is a professionally remanufactured Epson T054820 matte black ink cartridge, originally designed for the Stylus Photo R1800 and R800 printers. It has been thoroughly cleaned, inspected, and filled with ink that conforms to original specifications. The cartridge includes the original ink monitoring chip, which has been reset for accurate ink level tracking. Backed by our 100% Quality Satisfaction Guarantee, this remanufactured cartridge provides a reliable and economical alternative for your printing needs.