Renewable Toner Compatible Toner Cartridge High Yield Replacement for HP 29X C4129X for Laserjet 5000 5100 Printers Renewable Toner is enrolled in Amazon Brand Registry and we are the only authorized seller for RT products. When you add an RT product to your cart, please ensure you are buying from Renewable Toner before you proceed to checkout. We are not responsible for the quality, durability and functionality of products that are not sold by us. We also do not offer our lifetime warranty if an item is purchased from another seller. Color: Black Replaces OEM #: HP 29X / C4129X High Yield: 10k Pages based on 5% coverage Compatible With HP LaserJet Printers: 5000, 5000gn, 5000n, 5100, 5100dtn, 5100tn