Kingston Technology Corp. KSM32LQ4/128HC 128GB DDR4 3200MHz CL22 ECC LRDIMM server RAM

Server-grade 128 GB DDR4 module

This Kingston DDR4 LRDIMM provides 128 GB of ECC memory for servers and workstations that require large-capacity registered modules. The quad-rank design and 288-pin interface suit platforms built for high-density memory configurations. It operates at 3200 MHz with a CAS latency of CL22. The module runs at 1.20 V.

ECC and LRDIMM architecture

On-die ECC detects and corrects single-bit errors to protect data integrity in mission-critical workloads. The load-reduced DIMM topology reduces electrical loading on the memory bus, allowing the system to populate more slots at rated speed. Quad-rank organisation increases density per slot without changing the physical form factor. These traits support stable operation in multi-socket servers.

3200 MHz DDR4 speed rating

The PC4-25600 rating confirms a 3200 MHz data rate, which is the single specification that determines whether this module matches the platform's memory controller. Systems qualified for DDR4-3200 will run at full frequency; slower platforms will down-clock automatically. Buyers who need a different data rate or a non-ECC UDIMM format should select another part.