Unlike "used" computers, which are sold as-is by individuals, refurbished devices are returned to a manufacturer or certified vendor, professionally tested, repaired if necessary, and re-certified for sale.

Visible cosmetic wear like scratches or minor dents, but fully functional. Grade C: Heavier cosmetic wear, but still operational. Top 3 Reasons to Go Refurbished Guide to buying refurbished or second-hand computers

Buying Refurbished: The Ultimate Guide to Getting a "Like-New" PC for Less