4-Pack BK/C/M/Y High-Yield Toner Cartridge (WITH CHIP) For HP W2120X - W2123X (212X) Compatible With HP Color LaserJet Enterprise M578c,M578z, M554dn, M555dn, M555x, M578dn, M578f Color: Black, Cyan, Magenta, Yellow Toner Volume: High Yield Shelf Life: 2 Years Quantity: 4 Pack (Black x 1, Cyan x 1, Magenta x 1, Yellow x 1) 100% Compatible High Quality, Meet Or Exceed OEM Requirement 100% Satisfaction Guarantee! One Year Warranty!