HP 508X (CF363X) Magenta High Yield Original Laserjet Toner Cartridge HP 508X (CF363X) toner cartridges work with: HP Color LaserJet Enterprise M577, M553. Save up to 25% with high-yield HP toner. Cartridge yield (approx.): 9,500 pages Original HP toner cartridges produce an average of 71% more usable pages than non-HP cartridges. What's in the box: New Original HP 508X (CF363X) toner cartridge Color: Magenta