This is a genuine Epson UltraChrome HDX/HD orange ink cartridge holding 350 ml, Epson code C13T54XA00 (T54XA), for Epson's large-format SureColor SC-P6000, SC-P7000, SC-P8000 and SC-P9000 family of 24-inch and 44-inch photo and proof printers. The orange is one of the extended-gamut colours in Epson's UltraChrome HDX pigment ink set. Alongside the standard cyan, magenta, yellow and black inks, the extra colours widen the printable colour range, which matters for accurate reproduction of brand and spot colours, contract proofing, and fine-art and photographic prints on the higher-spec models in this family. Pigment inks give prints strong light-fastness and durability for display and archival use. The single cartridge fits straight into the printer's ink bay; the 350 ml size suits studios, print bureaus and signage shops with regular throughput. The boxed pack measures about 260 x 120 x 50 mm and weighs roughly 673 g.