OWC 64GB DDR4 2666MHz ECC Registered RDIMM 288-Pin 2Rx4 1.2V CL19 server RAM

Server-grade 64 GB DDR4 ECC RDIMM

This 64 GB DDR4 2666 MHz ECC registered DIMM targets administrators who need reliable, high-capacity memory for servers, workstations or NAS systems. It delivers 64 GB per module at PC4-21300 speed with CL19 latency and 1.2 V operation. The registered design and ECC support make it suitable for mission-critical workloads where data integrity matters.

JEDEC-compliant registered build without heat

The module follows JEDEC-standard specifications and is RoHS compliant, ensuring a warranty-safe upgrade path. Its 288-pin RDIMM form factor fits standard DDR4 server slots, while the registered buffer reduces electrical load on the memory controller. No heat spreader is present, so airflow in the chassis must handle thermal management directly.

Limited to DDR4 platforms that accept registered

This memory will not work in standard desktop computers and cannot be mixed with unbuffered modules. Backward compatibility covers 2133 MHz and 2400 MHz DDR4 speeds, but the module remains bound to the DDR4 generation and registered ECC requirement. Buyers needing unbuffered or non-ECC memory, or a different DDR generation, must look elsewhere.