Micron's 64GB DDR4 Registered DIMM (RDIMM) module, running at 3200MHz configured as 2Rx4, running at CAS latency CL22. As a Registered DIMM (RDIMM), it is a server-class module — the on-module register buffers the command/address signal, which reduces electrical load and lets a server motherboard reliably support many densely-populated DIMM slots, but it requires a server/workstation platform whose memory controller specifically supports registered memory, and will not work in a typical desktop board. Matching capacity, speed, and form factor exactly to the target system (and, for a multi-module upgrade, matching modules to each other) is what lets DDR4 memory run reliably at its full rated speed rather than falling back to a slower, auto-negotiated speed or failing to POST altogether. It ships with ECC protection with the register that defines RDIMM memory. The module uses 16Gbit density dies. At 64GB, this dual-rank DDR4 RDIMM is a substantial-capacity server module, aimed at populating a multi-channel DDR4-generation server or workstation platform that's still very much in active production use across the industry. It is stocked as part of Marvel's broader component range for South African PC builders, upgraders, and system integrators who need confirmed compatibility before purchase.