Synology D4RD-2666-16G memory module 16 GB 1 x 16 GB DDR4 2666 MHz ECC

Synology DDR4 Memory Module Always select authentic Synology memory modules from local distributors for optimum compatibility and reliability. Installation of non-Synology memory modules can lead to system instability or boot failures. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.