Genuine New HP RM2-6418 (RM2-6460) M452/M454/M477/M479 DUPLEX Fuser Unit . Condition is New HP BOX. Shipped with UPS Ground.  Fits only these models: HP LaserJet Pro M452 Series - Color HP LaserJet Pro M477 MFP Series - Color HP LaserJet Pro M377dw - Color HP LaserJet Pro M454 Series - Color HP LaserJet Pro M479 MFP HP LaserJet Enterprise M455dn - Color HP LaserJet Enterprise M480f - Color MFP