Memory expansion module | from 263 to 331

The Synology D4ES01-4G is a 4GB memory module with one 4GB DDR4 ECC stick. It features unbuffered, SODIMM technology and supports the latest Synology devices for optimal performance. Boost your system's power with this reliable, high-speed memory module.

Synology D4ES02-4G is a 4GB DDR4 ECC memory module designed for use in specific Synology NAS devices. It is compatible with the D4ES02 model and offers enhanced performance and reliability for your storage system.