Samsung 16GB DDR5-4800 desktop UDIMM (288-pin, non-ECC, 1Rx8, PC5-4800B-UA0-1010-XT), part number M323R2GA3BB0-CQKOL (also listed as CQK0L). Pulled from a working computer; used, should be working (not individually tested). Photos show the actual item you will receive.