V4INK174; Remanufactured HP Q3963A Toner Cartridge for HP2550 HP2820 HP2840 high yield of 4000 pages Color: Magenta Style: Remanufactured (NON-OEM) Guarantee: One-Year Warranty/Shelf Time: 18M Page Yield:4,000 pages @5% coverage ISO/IEC 19752 (letter/A4) Compatible Printer List: &lt;b&gt;HP 2550/2820/2840 Series