From the manufacturer
HP 131A Toner Cartridge for HP LaserJet Pro M251 M276. HP 131A toner cartridges work with: HP LaserJet Pro 200 color Printer M251nw, MFP M276nw. Original HP toner cartridges produce an average of 71% more usable pages than non-HP cartridges. HP 131A toner cartridge yield (approx.): 1,600 pages. 131A toner is designed to work with your HP printer for high quality, reliable results every print. Ensure that your printing is right the first time and every time with HP printer toner: 131A toner.