For HP Deskjet 1000, 1010, 1050, 1055, 1510, 1511, 1512, 1513, 2050, 2510, 2511, 2540, 2542, 3000, 3050, 3050A, 3052A, 3054, 3510, 510, 3512, Envy 4500, 4502, 5530, Officejet 4630. High yield. Yield up to 330 pages. Tricolor. ** Cartridges not functional with HP+ (InstanInk) printers, which end with the letter E. **