Compatible HP models:
Envy: 4500, 4501, 4502, 4503, 4504, 4505, 4506, 4507, 4508, 4509, 5530, 5534, 5535
Officejet: 2620, 2622, 4630, 4631, 4632, 4634, 4635, 4639
(Hp 61XL) - Inkjet Cartridge, Tri-Color (High Yield) Ink Monitoring Technology Page Yield, 330