The HP 147A Toner Cartridge is compatible with HP LaserJet Enterprise M611dn/M612dn and LaserJet Enterprise MFP M635fht/M635h/M635z/M636fh/M636z printers, delivering professional prints with vibrant colour images and sharp, accurate lines. Easy to install and replace, the ink will last for up to 10,500 printed pages before needing to be replaced.