HP 45 51645A Black Ink Cartridge | OEM Ink, Standard Yield — 51645A#140

Produce clear black text with the HP 45 (51645A) Black Original Ink Cartridge. As an OEM HP supply, it is designed to deliver the predictable print quality and compatibility that enterprise buyers expect when standardizing consumables across a printer fleet. This cartridge is well suited to routine office printing where document readability, supply consistency, and easy replenishment are priorities. Choosing an original HP cartridge helps reduce the uncertainty that can come with non-OEM alternatives and supports a cleaner procurement path for teams that value repeatable results. For environments that print forms, memos, and everyday business documents, the HP 45 offers a straightforward balance of quality and practicality. It is a sensible fit when the goal is dependable black output from a trusted supply source rather than chasing the lowest-cost cartridge on the market. Ideal For Printing memos, forms, and internal business documents Supporting small office and departmental black-and-white output Maintaining HP printer supply standardization across workgroups Replacing depleted cartridges in routine office environments Why This Product 1 OEM HP cartridge versus third-party alternatives 2 Standard-yield format versus high-yield replacement cycles 3 Black text output versus color-focused supplies 4 Original supply consistency versus generic refill options