KENNARET ENTERPRISES buys and sells new as well as refurbished parts. "Refurbished" means that the parts have been removed from a computer system, leased, if the parts has pins we make sure they are all straight, all pins and other components are there, and all refurbished parts are tested for for functionality. Occasionally some of our refurbished parts have scratches or some other cosmetic condition in the metal cover (which has nothing to do with the functionality of the chip) we grade them "B" and sell them at an appropriate discount. Grade B chips are not missing pins or any other component and are tested for functionality just the same as the Grade A parts.