HP 61 ink cartridges work with: HP Deskjet 1000, 1010, 1012, 1050, 1051, 1055, 1056, 1510, 1512, 1514, 1051, 2050, 2510, 2512, 2514, 2540, 2541, 2542, 2543 2544, 2546, 2547, 3000, 3050, 3051, 3052, 3054, 3056, 3510, 3511, 3512 HP ENVY 4500, 4502, 4504, 5530, 5531, 5532, 5534, 5535. HP Officejet 2620, 2621, 4630, 4632. Up to 2x more prints with Original HP ink vs refill cartridges. Operating temperature range-59 to 90°F. Storage temperature range-(-40) to 140°F