OWC 256GB (8x32GB) DDR4 2666MHz CL19 ECC Unbuffered UDIMM 1.2V 288-pin desktop RAM

256GB DDR4 ECC kit for workstations and servers

This kit provides 256GB of DDR4 memory across eight 32GB unbuffered UDIMMs. It is built for workstations, servers and NAS systems that require error-correcting code protection. The modules run at 2666MHz with a CL19 latency and operate at 1.2V. They are fully compliant with JEDEC specifications.

Capacity headroom at 256GB across eight modules

Eight 32GB modules give 256GB total capacity for large datasets, virtualisation and heavy multitasking. The kit runs natively at 2666MHz and is backward compatible with 2133MHz and 2400MHz platforms. ECC functionality detects and corrects single-bit errors to maintain data integrity under sustained load. Unbuffered design keeps latency low for responsive performance.

Thermals and power draw at 1.2V without spreaders

Modules operate at the standard 1.2V DDR4 voltage without heat spreaders, relying on case airflow for cooling. Power draw scales with the eight-module population and 2666MHz frequency. The unbuffered design avoids the extra power of registered DIMMs. JEDEC compliance ensures stable operation within normal thermal limits.