A-Tech 64GB DDR5 4800 ECC RDIMM 2Rx4 Samsung M321R8GA0BB0-CQK Server Memory

Capacity and purpose

This 64GB DDR5 registered ECC DIMM is built for servers and workstations that require error correction and signal buffering. The 2Rx4 organisation and Samsung chipset provide the density and stability expected in multi-socket platforms. It is not suited for consumer desktops or laptops that accept only unbuffered non-ECC memory. Builders who need unregistered modules or lower capacities should select a different product.

Sustained workload behaviour

Rated at 4800 MT/s with a CL40 latency and 1.10V operation, the module maintains its rated throughput during extended compute runs thanks to the registered interface reducing electrical load on the memory controller. ECC circuitry detects and corrects single-bit errors on the fly, preventing silent data corruption during long-running jobs. Workloads that exceed the single-module capacity or require higher frequencies will need additional DIMMs or faster-rated parts.

Build and connectivity

The stick uses a 288-pin DDR5 DIMM form factor with a 262-pin contact layout as specified by the Samsung M321R8GA0BB0-CQK reference design. Registered signalling and on-module voltage regulation contribute to reliable insertion and stable operation in qualified server chassis. Systems that lack DDR5 RDIMM slots or that require a different pin count cannot accept this module.