The Synology RAM DDR4-2666 ECC UDIMM 8GB (D4EC-2666-8G) is a high-quality memory module designed specifically for Synology NAS servers. This DDR4 SDRAM module offers a total capacity of 8GB in a single UDIMM form factor. With a bus speed of PC4-21300 (2666 MHz), this product provides reliable performance for enhancing the speed and efficiency of your NAS server. Manufactured in Taiwan by Synology, this RAM module ensures compatibility and quality for your computer networking needs.