https://www.staplesadvantage.com/hp-laserjet-enterprise-m406dn-printer-3pz15a-bgj/product_24477435_24477435

Standard Yield: https://www.staplesadvantage.com/Troy-Compatible-Black-Standard-Yield-MICR-Toner-Cartridge-Replacement-for-HP-58A–CF258A-/product_24469042

High Yield: https://www.staplesadvantage.com/HP-58X-Black-High-Yield-Toner-Cartridge/product_24398982