Laser Tek Services Compatible High Yield Toner Cartridge Replacement for the HP CE390X. (Black, 1-Pack) Package Contains: 1 x Compatible HP CE390X High Yield Toner Cartridge. Page Yield: 24,000 pages @ 5% page coverage. Works in the following printers: HP LaserJet Enterprise 600 M602DN, HP LaserJet Enterprise 600 M602N, HP LaserJet Enterprise 600 M602X, HP LaserJet Enterprise 600 M603DN, HP LaserJet Enterprise 600 M603N, HP LaserJet Enterprise 600 M603XH, HP LaserJet Enterprise M4555, HP LaserJet Enterprise M4555 MFP, HP LaserJet Enterprise M4555F, HP LaserJet Enterprise M4555FSKM, HP LaserJet Enterprise M4555H, HP LaserJet M4555, HP LaserJet M4555H, HP LaserJet M4555N. Laser Tek Services offers a 1 year, 100% satisfaction guarantee on the purchase of any Laser Tek Services replacement cartridges, drums, and refill kits. The use of Laser Tek Services compatible replacement toner cartridges, inkjet cartridges, and drum units will not void your printer's warranty.