NEMIX RAM memory upgrade for DELL PowerEdge R440: 8GB to 64GB DDR4-2666 PC4-21300 ECC Registered (RDIMM) modules selected as drop-in, compatibility-tested replacements. 1.2V, 288-pin, Registered/Buffered, JEDEC-compliant for stable operation in enterprise servers and workstations. Researched, matched, and compatibility-tested by NEMIX RAM, a US-based server memory specialist since 1993, and backed by a lifetime warranty. Volume, reseller, and B2B pricing available on request — contact our sales team for a quote.