NEMIX RAM RS720QA-E12-RS8U 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

System-specific DDR5 ECC kit

This 128GB kit contains four 32GB DDR5 4800 RDIMMs built for the ASUS RS720QA-E12-RS8U 2U4N rack server. Each module is registered, runs at 1.1V and carries ECC for data integrity in multi-node deployments. The 1Rx4 organisation matches the platform's high-density memory map. IT teams upgrading compute nodes in this chassis will find the kit validated for the target system.

Thermals and power in normal use

Operating at 1.1V, the modules draw minimal power per DIMM while delivering 4800 MT/s throughput. Registered buffering reduces electrical load on the memory controller, helping stability across all four nodes. No heat spreaders are fitted; airflow through the server's front-to-rear cooling path handles thermal dissipation. CL40 latency is standard for DDR5-4800 registered ECC at this density.

Build quality and daily implications

Samsung, Micron or Hynix DRAM chips are used under NEMIX qualification and stress testing. The 288-pin RDIMM form factor keys only into DDR5 RDIMM slots, preventing mis-installation in UDIMM or previous-generation sockets. Four modules fill one memory channel per node in the 2U4N layout, leaving remaining slots free for future expansion. Registered signalling and ECC operate transparently once the server POSTs.