This Compatible HP Black Ink Cartridge is a great substitute to the original OEM HP Black Ink Cartridge (CB321WN, HP 564XL Black) and is designed to work perfectly with your HP printer/copier/fax. All of our compatible HP products are engineered to meet or exceed the high standard of quality of their respective OEM counterparts for just a fraction of the cost. We are so confident of this that we support our product with our 100% satisfaction guarantee.
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