RIGHTINK 4pack ink cartridges for HP 950XL 951 Fit for HP Officejet Pro 8600 8630 8640 251dw 271dw Printer Package Contents: 1 * Black HP950XL + 1 * Cyan HP951XL + 1 * Magenta HP951XL + 1 * Yellow HP951XL Type: Premium Compatible/Remanufactured ( Not Made by HP) Compatible Printer List: HP OfficeJet Pro 251dw, OfficeJet Pro 276dw, OfficeJet Pro 8100, OfficeJet Pro 8600, OfficeJet Pro 8600 Plus, OfficeJet Pro 8600 Premium, , OfficeJet Pro 8615, OfficeJet Pro 8630 Gurantee:Good after sale service and all products covered by a 100% satisfaction guarantee and 90 days warranty Feature : 1. The color can perform as the original products. 2. The rest of ink rate is 0 and the usage rate is 100%.