They were an exact replacement
Review by Erik T. on 15 Oct 2015 review stating They were an exact replacement They were an exact replacement for the HP cartridges. Works great, recognized by the printer and bought all 4 for the price of 1 HP. Highly recommend!
On Compatible HP CE410A (305A) Black Laser Toner Cartridge for Color LaserJet M351, M375, M451, M475