Premium bundled T273XL020, T273XL120, T273XL220, T273XL320, T273XL420 (Epson 273XL) High Yield Black, Photo Black, Cyan, Magenta, Yellow Inkjet Cartridges Value Bundle, 5pk fully compatible with the Epson Expression XP-820, XP-600, XP-610, XP-800, XP-810. The use of compatible supplies does not void your printer warranty.