64GB Total. 4pcs of 16gb DDR4, 2400MHz, ECC, CL17, 2R, X4, 1.2V, DIMM, 288-pin Brand BY Computer Memory Solutions LIFETIME WARRANTY BY CMS Maximum Memory: 64 GB with ECC RDIMMs Or 128 GB with
LRDIMMs Expansions: 4 Socket (s) Memory will clock down to run at optimal speeds depending on processor model installed. This system supports Registered ECC (RDIMM) or Load Reduced (LRDIMM) memory. Mixing RDIMM and LRDIMM is not supported within this system.
Compatible with: Supermicro SuperServer 5018D-FN4T (Super X10SDV-8C-TLN4F), 5018D-FN8T (Super X10SDV-TP8F), 5018D-LN4T (Super X10SDV-2C-TP4F) SYS-5018D-FN4T; SYS-5018D-FN8T; SYS-5018D-LN4T