SAMSUNG Original 4GB 204-Pin DDR3 1600 MHz SO-DIMM (PC3 12800) Laptop Memory Module Notebook RAM Model M471B5273EB0-CK0

This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.