That's Sew Kari HP 49A (Q5949A) Black Original LaserJet Toner Cartridge. Impress clients with documents printed with this HP 49A black original toner cartridge. With this cartridge installed in your HP LaserJet printer, you can expect a high yield of up to 2,500 sheets, which is ideal for busy offices, and each page is printed clearly and crisply from start to finish. This HP original 49A black toner cartridge has an automatic alert feature for simple reordering to keep stock at correct levels.