(2) Intel Black Core i7 Desktop X-Series Processor S/N: Unknown;  (4) Intel Desktop Processor 7th Generation i7-7700, 3.6 GHZ, 8MB Cache S/N: U8371LV402990, U8371LV402646, U8371LV401481, U8371LV400637;  (4) Intel Core i7-7700, 3.6GHz, 8MB Cache, LGA1151 S/N: M88P2B2801277, M8QQ576500970, M8G24R7900250, M8RY518002586