Synology DDR4 RAM (ECC)
Following up on last June's Synology DDR4 RAM post, the 21-series launch added two ECC SO-DIMMs, the D4ES01-4G and D4ES01-8G. Notably, Synology dropped the '2666' from the naming of these newer D4ES01 modules.
ECC RAM
ECC RAM modules for NAS units.