RAM for Synology D4ES03-16G

The D4ES03‑16G module is a 16 GB DDR4 ECC Unbuffered SO‑DIMM (260-pin), running at 2666 MHz (PC4‑21300) and 1.2 V. It is fully compatible with Synology 25-series NAS devices including DS1825+, DS1525+, DS925+, and DS725+.

With ECC (Error‑Correcting Code) support, it detects and corrects single-bit errors in real time—vital for maintaining data integrity in servers. The unbuffered design minimizes latency and is ideal for compact NAS environments. The module includes a 5-year manufacturer warranty.

Features

• 16 GB DDR4 ECC memory module
• Unbuffered SO‑DIMM, 260-pin form factor, 1.2 V
• Compatible with Synology 25‑series NAS devices
• ECC support for error resilience
• 5‑year manufacturer warranty

Technologies

• ECC error correction for reliable data integrity
• Compact SO‑DIMM format suitable for NAS servers
• Unbuffered operation reduces latency
• Engineered for stable NAS performance in demanding environments

Who It’s For

• IT professionals managing Synology NAS systems
• Businesses requiring dependable, error-protected storage
• Home server users whose data integrity is paramount
• Users seeking official Synology memory for assured compatibility