Resolved! B200 M4 RAM
Dear I am upgrading B200 M4 RAM the previous RAM installed are 16GB ( UCS-MR-1X162RU-A ) 16GB DDR4-2133-MHz RDIMM/PC3-17000/dual rank/x4 and i now i get the Refurbished on CCW with UCS-MR-1X162RUA-RF 16GBDDR4-2133MHzRDIMM/PC4-17000dualRank4/1.2v ...