OWC 3R2D42R432GB 32GB DDR4 3200 CL22 ECC Registered RDIMM memory upgrade

32GB DDR4 ECC RDIMM for Supermicro servers

This 32GB DDR4 3200 CL22 registered DIMM is built for Supermicro H11SSL and H12DSG series motherboards. It targets administrators who need ECC registered memory to maintain data integrity in multi-socket server workloads. The module runs at 1.2 V and fits the standard 288-pin DDR4 slot. It is not compatible with desktop boards that only accept unbuffered memory.

Registered ECC is the deciding specification

The module is a 2Rx4 registered ECC RDIMM. That combination is mandatory for the listed Supermicro platforms and will not work in systems that require unbuffered non-ECC DIMMs. Mixing this stick with unbuffered memory is not supported. Verify that your motherboard specifically calls for registered ECC DDR4 before purchase.

Standard voltage and no heat spreader

Operating at the JEDEC standard 1.2 V keeps power draw low for dense server configurations. The absence of a heat spreader means airflow across the PCB is the only cooling path; ensure the chassis provides sufficient front-to-back airflow over the memory slots. Under typical server loads the modules run within normal DDR4 thermal limits without additional cooling.