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

Server-grade DDR5 ECC registered module

This 128GB DDR5 5600 CL46 4Rx4 288-pin 1.1V ECC registered RDIMM is built for Supermicro SuperServer SYS-121C-TN2R, SYS-121H-TNR, SYS-211E-FRDN13P, SYS-211E-FRDN2T and SYS-211E-FRN13P platforms. It targets administrators upgrading workstation, NAS, server or network-switch memory where error-correcting registered modules are required. The single-module design adds full capacity in one slot. It will not work in standard desktop computers or alongside unbuffered or load-reduced DIMMs.

Thermals noise and power draw

Operating at 1.1V, the module runs at standard DDR5 voltage for registered server memory. No heat spreader is fitted, so airflow across the DIMM slots handles cooling in typical 1U or 2U chassis. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable under sustained workloads. Acoustic impact is negligible because the module has no active components.

Build quality and connector implications

The 288-pin RDIMM form factor matches the listed Supermicro servers exactly, ensuring a secure seat in registered DIMM slots. JEDEC and RoHS compliance confirms adherence to industry electrical and environmental standards. A limited lifetime warranty with advanced replacement and free technical support backs the upgrade. Buyers needing unbuffered ECC or load-reduced memory for other platforms cannot use this module.