2540, 2541, 2542, 2543, 2544, 2546, 2547, 2548, 2549, 2510, 2511, 2512, 2514, 2050A, 2054A, 2050. Contents: For HP 61XL Black/HP 61XL Tri-Color (Show Accurate Ink Levels). HP Deskjet. HP Officejet.
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