Package Include: 2 Pack S2830X (2xBlack) Compatible with: Dell S2830dn S2830 Printer Product Type: Toner Cartridge Page Yield: Black Up to 8,500 Pages per cartridge Green Toner Supply offers 1-Year money back warranty on defective toner cartridges What is/are in the package? S2830(2xBlack) How many pages does this print up to? Black Up to 8,500 Pages per cartridge How do you install the toner cartridge? ①Remove the orange cover, if applicable ②Pull out the plastic tag (where you see the orange ring) which is on the side of the cartridge, if applicable ③Insert into the printer ④Enjoy printing! What are the compatible printers? Dell S2830dn S2830 Printer What is the warranty? Green Toner Supply offers 1-Year money back warranty on defective toner cartridges What is the shelf life? Suggested shelf life: Up to 36 months Please store the unused/unopened toner cartridges in a dry and cool place. Avoid sun exposure Have a question or a problem? Please do not hesitate to contact us, our Customer Services Team will usually response your email or message within 1-2 business days.