Our compatible replacement for T580300 (T5803) magenta 80ml inkjet cartridges are manufactured to deliver optimal performance and high quality printouts at a fraction of the cost of the Epson OEM T580300 ink-jet cartridges. We offer a Two Year 100% Quality Satisfaction Guarantee on our compatible replacements for T580300. We guarantee that you will be satisfied with the high quality print outs of our compatible replacement for the T580300 (T5803) ink jet cartridges or your money back. Why pay double for a T580300 brand name ink cartridge? Save 75% Compared to MSRP on the replacement for Epson T580300. Note: Keep your empty OEM cartridge as the chip will be needed in order for this compatible cartridge to function properly. For use in the following printers: Epson Stylus Pro 3800, 3800 Portrait Edition, 3880, 3880 Designer Edition, 3880 Graphic Arts Edition, 3880 Signature Worthy. We are the exclusive reseller of LD Products brand of high quality printing supplies on Newegg.