NEMIX RAM 256GB (2x128GB) DDR5 6400 CL52 ECC RDIMM ASRock Rack GNRAPD12DNO memory upgrade

256GB DDR5 6400 ECC RDIMM kit for ASRock Rack

This 256GB kit contains two 128GB DDR5 6400 RDIMMs built to the exact rank, voltage and timing the ASRock Rack GNRAPD12DNO motherboard expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors on the fly. It is intended for server administrators who need guaranteed compatibility and maximum capacity on this specific platform.

DDR5 6400 RDIMM limits

DDR5 6400 RDIMMs operate at 1.1V with a CAS latency of 52 and a 288-pin form factor that only fits DDR5 RDIMM slots. Registered buffering offloads the memory controller so all channels can be filled without signal degradation, but the modules will not work in UDIMM or SODIMM sockets. Buyers who need unbuffered memory or a different pin layout must choose another product.

2Rx4 rank and 1.1V specification

Each module uses a 2Rx4 organisation at 1.1V, the exact configuration the board's memory controller validates during training. If your system requires a different rank structure or voltage, this kit will not post or will run at reduced capacity. Always confirm the motherboard's qualified-vendor list before ordering.