Synology D4NS01-4G memory module 4 GB 1 x 4 GB DDR4

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.