OEM-Genuine....Duel Pack.... HP....CE410XD .... 305X ..Black Dual Pack ... LaserJet Toner FOR: HP LaserJet Pro 300, Color MFP M375nw, LaserJet Pro 400 Color M451DN, LaserJet Pro 400 Color M451DW, LaserJet Pro 400 Color M451NW, LaserJet Pro 400 Color MFP M475dn, LaserJet Pro 400 Color MFP M475dw.. Page Yield 4000 each...also see:ce410x,ce411,ce412a,ce413a