Improve workteam productivity and make information sharing more efficient. Simply add embedded analog fax functionality to your HP LaserJet MFP to send and receive documents quickly, easily and securely. - HP LaserJet MFP Analog Fax Accessory 500 - UK English localization - For use with HP Colour LaserJet CM450, CM 3530, M775, M575, M4555, M725 Series Printers