Compatible with: HP Color LaserJet: M252dw, M252n, M277c6, M277n, MFP M277dw HP LaserJet HP LaserJet Pro: M252dw, M252n, M277n, MFP M277dw This is the Compatible Higher Yield Version of HP 201A CF400A Black Professionally manufactured by LD Products Page Yield* Per Cartridge: 2,800* For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance. *Average cartridge Page Yield at 5% coverage in accordance with ISO IEC 24711 Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.