64GB Total. 4pcs 16gb DDR4, 2133MHz, ECC, CL15, 2R, X4, 1.2V, Registered, DIMM, 288-pin THIS MODULE IS MANUFACTURED BY Computer Memory Solutions LIFETIME WARRANTY BY Computer Memory Solutions
Compatible with: HP/Compaq ProLiant BL460c Gen9 (G9), DL160 Gen9 (G9), DL180 Gen9 (G9) 727021-B21; 727026-B21; 727027-B21; 727028-B21; 727029-B21; 727030-B21; 727031-B21
Maximum Memory: 512 GB Reg ECC RDIMMs 1
TB LRDIMMs Expansions: 8 Socket (s) per CPU 16 Socket (s) using two CPUs