Compatible Printers:HP OfficeJet 8120 8123 8122e OfficeJet Pro 8130 8135e 8138e 8139e High Page Yield: 500 pages for 923 black ink cartridge, and 400 pages for 923 color ink cartridge at 5% coverage of A4 paper Package Contents: 1×Black, 1×Cyan, 1×Magenta, 1×Yellow No Chip:Jettruemedia compatible replacement for 923 ink cartridges do not have chip. Please transfer chip from original 923 ink, follow user instructions and use the tools we provided to complete the chip installation Note:Please confirm whether the ink cartridge is original 923 before purchasing. This product is only suitable Compatible for 923