This is the genuine Epson Magenta XXL Ink Supply Unit (C13T869340, T8693) for the Epson WorkForce Pro WF-R8590 A3+ colour business inkjet multifunction printer. Rated for approximately 75,000 pages and holding 735.2 ml of magenta DURABrite Pro ink, it is designed for high-volume offices that want a very low cost per page and fewer interruptions for ink changes. Original Epson ink keeps colours accurate and text sharp, and protects the reliability of the WF-R8590's replaceable ink pack system. The pack contains one magenta ink supply unit. Store it sealed until use and install it following the printer's on-screen guidance. Combine it with the matching black, cyan and yellow XXL units to keep the printer fully supplied for long print runs. After comparing online prices, www.marvel.co.za should be the cheapest on this product.