Compatible with: HP LaserJet Pro: M15a, M15w, MFP M28a, MFP M28w, MFP M29w Package includes: (4) 48a compatible toner cartridge HP CF248A Toner Black Page Yield*: 1,000* For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance. *Average cartridge Page Yield* in accordance with ISO IEC 24711. *at 5% coverage (ISO/IEC standard) Professionally re-manufactured by LD Products. HP is a registered trademark of HP Inc. and is not affiliated with and does not endorse LD Products.