This Kingston 64GB DDR5 ECC Registered memory module is built for server and workstation platforms that support DDR5 RDIMM memory, running at 6400MT/s with a dual-rank (2Rx4) configuration. The catalog listing doesn't specify which DRAM chip vendor is used in this particular module (Kingston sources DDR5 ECC RDIMMs from multiple chip makers depending on availability), but the electrical and capacity specification is otherwise identical to Kingston's other 64GB 6400MT/s ECC RDIMMs. ECC support corrects memory errors automatically, which matters for servers, databases, and virtualization hosts running continuously. As a registered DIMM, it reduces load on the memory controller, letting more modules be populated per channel — typically bought in matched multi-DIMM kits.