Overview
The Synology D4ES01-4G is a proprietary 4GB DDR4 ECC unbuffered SO-DIMM memory module, built and designed specifically for optimal performance and data integrity in compatible Synology NAS and workstation systems. This RAM module operates at 2666 MHz (PC4-21300) with a 1.2V voltage, and its Error-Correcting Code (ECC) technology helps prevent data corruption, making it suitable for business-critical applications. The compact, 260-pin form factor is designed for easy installation in specific Synology models like the DS1621+, and using authentic Synology modules is recommended to maintain system stability and warranty coverage.
