Axiom Memory UCSX-MR256G4RG5 256GB DDR5-6400 ECC RDIMM

Increase installed server memory with a 256 GB DDR5-6400 ECC registered DIMM intended for Cisco memory upgrades. This Axiom Memory module provides the high-density RDIMM format used where a server requires registered memory rather than unbuffered desktop DIMMs. ECC capability supports detection and correction of memory errors, while DDR5-6400 operation aligns with platforms built for this memory speed grade. The 256 GB capacity makes this module relevant when expanding virtual-machine density, enlarging database buffer pools, allocating more memory to analytics processes, or increasing headroom for consolidated enterprise workloads. Registered DIMMs use a register between the memory controller and DRAM devices, a characteristic required by many server-class memory architectures. Match the module type, supported memory generation, speed, and capacity rules to the host Cisco system before installation. UCSX-MR256G4RG5-AX corresponds to the Cisco UCSX-MR256G4RG5 memory designation and supplies one 256 GB DDR5 ECC RDIMM for compatible configurations. Its combination of DDR5-6400 speed, registered architecture, ECC capability, and 256 GB capacity distinguishes it from lower-capacity or non-server memory options. Use matched module populations where the server platform’s memory population rules require them, and retain the host system’s supported DIMM placement order when adding capacity.