NEMIX RAM 16GB DDR5 4800 ECC RDIMM CL40 1Rx8 1.1V 288-pin Samsung M321R2GA3BB0-CQK memory upgrade

16 GB DDR5 ECC RDIMM for Samsung servers

This 16 GB DDR5 4800 module is built for Samsung server and workstation platforms that require registered ECC memory. It uses a 1Rx8 organisation with Samsung-sourced DRAM and runs at the standard 1.1 V. The RDIMM form factor fits 288-pin DDR5 slots in compatible enterprise systems.

Registered DDR5 limits capacity per channel

Registered DDR5 RDIMMs add a buffer that reduces electrical load on the memory controller, allowing higher total capacities than unbuffered modules. The trade-off is one extra clock cycle of latency compared with UDIMMs. Systems must support registered ECC memory; consumer desktop chipsets will not accept this module.

CL40 latency at DDR5 4800 sets the timing budget

The module operates at CAS latency 40 (CL40) at the 4800 MT/s data rate, defining the minimum response time for memory requests. Workloads sensitive to latency should verify this timing against the platform's memory controller requirements before purchase.