Original HP 87X High Yield Toner Cartridges deliver legendary HP print quality. HP 87 toner cartridges work with: HP LaserJet E52545, M506, M527; HP LaserJet Enterprise M506, M527; HP LaserJet Flow E52545; HP LaserJet Pro M501 1 Black (~18,000 pages) Original HP black-and-white printer toner cartridges tested produced, on average, 11% more usable pages than non-HP cartridges.* Reliable printing you can trust Ideal for printing consistent, quality black-and-white pages at high speeds your HP printer or MFP was built for, while helping protect against fraud. Depend on Original HP 87X High Yield Toner Cartridges designed specifically for your HP printer. 1 Cartridge Ideal for printing consistent, quality black-and-white pages at high speeds your HP printer or MFP was built for, while helping protect against fraud.Count on Original HP Toner cartridges with JetIntelligence to deliver consistent quality at fast speeds, plus affordable high-yield options[2], anti-fraud technology, and consist