Per HP 301 3 ml black original. Compatible with : Per HP DeskJet 1000, 1010, 1050 AiO, 1050A AiO, 1510 AiO, 2000, 2050 AiO, 2050A AiO, 2510 AiO, 2540 AiO, 3000, 3050 AiO, 3050A eAiO, 3510 eAiO series, Per HP ENVY 4500 eAiO, 5530 eAiO series, Per HP OfficeJet 2620 AiO, 4630 eAiO series.
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