OWC 32GB DDR4 PC4-21300 2666MHz ECC. Compatibility QNAP RAM-32GDR4ECP0-SO-2666. Watch our OWC Basic Installation Video for Help. Capacity 32GB Form Factor 260-PIN SODIMM. Speed PC4-21300 2666MHz CL19 Backward Compatibility ALSO COMPATIBLE WITH 2400MHz AND 2133MHz.
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