SK hynix 64GB (1x64GB) DDR4-2933MHz PC4-23400 ECC Registered RDIMM Server Memory Module. Part Number: HMAA8GR7MJR4N-WM. Dual Rank x4 (2Rx4), 288-pin, 1.2V. Ideal for enterprise servers supporting DDR4-2933 ECC RDIMMs (e.g., compatible with many Dell, HP, Lenovo, etc., server platforms). High reliability with error correction for demanding workloads like virtualization, databases, and cloud computing."