Still installed in a working server, server has had minimal usage as was part of the test setup that never eventuated. Successfully passed memtest86 4 passes

Elevate your servers performance with the SK Hynix 64GB DDR4 ECC RAM kit. Each boasting a substantial 64GB capacity, this package is designed to handle demanding enterprise applications. The modules are built for reliability and high-speed processing, ensuring your critical systems operate at peak efficiency. Manufactured in South Korea, these DIMM modules are specifically engineered for server compatibility and feature ECC memory to detect and correct errors, maintaining data integrity. With a bus speed of PC4-21300 (DDR4-2666), they deliver swift data transfer rates for smooth multitasking and robust performance.