Features: 1) Compatible with HP C6615D 2) Used for DeskJet 810C, 812C, 815C, 825C, 825Cvr, 840C, 841C, 842C, 845C, 920C, 920Cxi, 920Cvr, 940C, 940Cvr, 940Cxi, 940Cw, 948C, 3820 3) Ink volume: 40ml 4) Non-refurbished cartridge (brand new empty + brand new print head + ink made in the USA) 5) Excellent printing effect 6) Competitive price with good after-sales service Packing: Neutral or OEM packing