OWC 5R6D54R4128G 128GB DDR5 5600 CL46 4Rx4 288-pin 1.1V ECC RDIMM memory upgrade

Server-grade DDR5 upgrade

This OWC 128GB DDR5 5600 CL46 ECC registered DIMM is built for Supermicro SuperServer platforms including the SYS-421GE-TNHR2-LCC SYS-421GE-TNRT SYS-421GE-TNRT3 and SYS-421GU-TNXR. It targets administrators expanding memory capacity in workstations NAS systems and network switches that require registered error-correcting modules. The single-module design simplifies slot population in dense server chassis.

Thermals and power draw

Operating at 1.1V the module follows JEDEC DDR5 voltage standards for lower power consumption per gigabyte compared with previous generations. No heat spreader is fitted so airflow across the bare PCB handles thermal dissipation in typical server environments. Registered buffering reduces electrical load on the memory controller contributing to stable operation under sustained workloads.

Build and connectivity

The 288-pin RDIMM form factor with 4Rx4 organisation plugs directly into compatible Supermicro DDR5 slots without adapters. JEDEC and RoHS compliance ensures the module meets industry specifications for warranty-safe upgrades. ECC registered architecture prevents mixing with unbuffered or load-reduced DIMMs so identical modules must populate each channel for correct operation.