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Description
NEMIX RAM memory upgrade for Apple iMac 21.5" Retina 4K 2019 (iMac 19,2): 8GB / 16GB DDR4-2666 PC4-21300 non-ECC SODIMM modules, sold as single modules and matched kits, selected as drop-in, compatibility-tested upgrades. 1.2V, 260-pin, Unbuffered, Non-ECC, JEDEC-compliant. Apple specification for the iMac (Retina 4K, 21.5-inch, 2019): DDR4 SODIMM memory, up to 32GB; 2666MHz with the 3.0GHz six-core and higher processors, 2400MHz with the 3.6GHz quad-core, which runs these DDR4-2666 modules at 2400MHz. Apple does not consider the memory in this model user-accessible: it sits behind the display, and Apple recommends installation by an Apple Store or Apple Authorized Service Provider. Install identical modules in matched pairs. Researched, matched, and compatibility-tested by NEMIX RAM, a US-based 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.