OWC 128GB DDR4 3200 PC4-25600 CL22 8Rx4 288-pin ECC RDIMM memory upgrade

128GB DDR4 ECC Registered RDIMM

This 128GB DDR4 3200 module is built for ASUS rack servers including the RS500A-E9-RS4 and RS520A-E11-RS12U. It delivers error-correcting registered memory for workloads that demand data integrity. The single DIMM fits 288-pin slots in compatible workstation and NAS systems. It will not work in standard desktop computers or alongside unbuffered or load-reduced memory.

Capacity and headroom for server workloads

One module provides 128GB of capacity at PC4-25600 speed with CL22 latency. The 8Rx4 organisation and 1.2V operation suit high-density configurations in the listed ASUS platforms. Systems that require more total memory can populate additional slots up to the platform limit. Buyers needing lower-density modules or non-ECC memory for consumer hardware cannot use this product.

DDR4 3200 interface practical limits

The module runs at 3200MHz and is backward compatible with 2133, 2400, 2666 and 2933MHz bus speeds. JEDEC compliance ensures correct timing negotiation at each supported frequency. Registered signalling adds one cycle of command delay, which is standard for this class of memory. Systems that do not support registered ECC DDR4 cannot accept this DIMM.