Cool Toner Compatible HP 131X Toner Cartridge 3 Color HIGH YIELD - Cartridge Yield: 4000(black) Support - advanced technology ensures stunning performance Service - Phone services for technical support Warranty - 3-years warranty; Replacement or Refund upon request MODEL - Compatible Printer Model ---HP LaserJet Pro 300 Color M351a/MFP M375nw, HP LaserJet Pro 400 Color M451 series/MFP M475 series