The HP 81A toner cartridge is designed for specific HP LaserJet Enterprise printer models. To ensure compatibility and optimal performance, it’s important to use toner cartridges that are designed for your exact printer model. The HP 81A toner cartridge is compatible with the following printer model:

• HP LaserJet Enterprise M604n
• HP LaserJet Enterprise M604dn
• HP LaserJet Enterprise M605n
• HP LaserJet Enterprise M605dn
• HP LaserJet Enterprise M605x
• HP LaserJet Enterprise M606dn
• HP LaserJet Enterprise M606x
• HP LaserJet Enterprise MFP M630dn
• HP LaserJet Enterprise MFP M630f
• HP LaserJet Enterprise MFP M630h

When searching for compatible toner cartridges for your HP LaserJet Enterprise printer, ensure that you purchase from reputable sources to guarantee the quality and compatibility of the product. Verify compatibility by checking the packaging or product description to confirm that the toner cartridge is specifically designed for use with your particular printer model (one of the models listed above).