Retail box distressed. Free shipping applies within the United States only. Orders to Alaska, Puerto Rico, Guam, Virgin Islands, PO/FPO/APO boxes may require an additional fee. Storage and Memory: This Refurbished Lenovo ThinkCentre M920z All-in-One Desktop has built-in 16GB DDR4 RAM and 512GB hard drive storage space, runs smoothly, responds quickly, and handles multi-application and multimedia workflows efficiently and quickly.