Compatible HP models:Color LaserJet: 4730, 4730x, 4730xm, 4730xs, CM4730, CM4730f, CM4730fm, CM4730fsk Yields up to 12,000 pages. HP ColorSphere toner gives quality results, with sharp black text and brilliant color. HP Ink, Toner & Ribbons part of a large selection of printer ink and toner. HP 644A, Magenta Original Toner Cartridge (Q6463A) is one of many Ink, Toner & Ribbons available through Office Depot. Made by HP.