Synology D4ES02-4G 4GB DDR4 ECC UDIMM SODIMM | Memory Upgrade

Keep Synology storage and server workloads running with memory built for consistency, not guesswork. This 4 GB DDR4 ECC unbuffered SODIMM is designed for compatible Synology systems that require compact, error-correcting memory in a small-footprint form factor. ECC support helps detect and correct common memory errors before they affect service, making this module a strong fit for environments where data integrity and uptime matter. The unbuffered SODIMM design supports systems that need efficient memory expansion without the overhead of larger server DIMMs. For IT teams standardizing on Synology hardware, this module offers a straightforward way to extend system memory while staying within platform requirements. It is well suited to branch offices, edge deployments, and storage appliances that need dependable performance for file services, backup tasks, and light virtualization support. When compared with generic memory, purpose-matched Synology RAM reduces compatibility risk and helps protect the investment in the platform.