The 350 mL T596B00 Green UltraChrome HDR Ink Cartridge from Epson is an ink cartridge designed specifically for use with Epson Stylus Pro 7900 and 9900 model printers. This ink represents the latest generation of pigment ink technology from Epson. Printers using this ink produce the widest color gamut ever offered by an Epson Stylus Pro printer.