HP 147x LaserJet Black High Yield Toner Cartridge - W1470X
Easy to install and replace, the ink will last for up to 25,200 printed pages before needing to be replaced. Designed for use with HP LaserJet Enterprise M611dn/M612dn and LaserJet Enterprise MFP M635fht/M635h/M635z/M636fh/M636z.