A-Tech 256GB (4x64GB) DDR5 6400 EC8 RDIMM 2Rx4 Server RAM

256GB DDR5 6400 EC8 RDIMM kit

This quad-channel kit provides 256GB of DDR5 6400 registered ECC memory across four 64GB modules. It is built for servers and workstations that require 288-pin RDIMM form factor with error-correcting code and registered buffering. The dual-rank x4 organisation suits multi-socket platforms needing high capacity per channel. Desktop and laptop systems cannot use these modules.

Thermals noise and power at 1.1V

Operating at the standard DDR5 voltage of 1.1V, the modules run without a heat spreader and rely on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping to keep power draw predictable under sustained server workloads. No active cooling is included, so adequate case ventilation is required for stable operation.

Build quality and mounting implications

Each module uses major-brand chips and undergoes quality-assurance testing before shipment. The 288-pin RDIMM keying prevents accidental installation in non-ECC or unbuffered slots. Quad-channel population rules apply, so the system manual must be consulted for correct slot order. The kit is covered by a lifetime warranty with US-based technical support available.