Synology 4GB DDR4-2666 Non-ECC SO-DIMM NAS Memory (D4NESO-2666-4G) – PC4-21300

The Synology 4GB DDR4-2666 non-ECC SO-DIMM NAS module is designed for network attached storage systems. It adds capacity and bandwidth for smoother multitasking and faster app switching. Speed is rated at 2666 MT/s. It is built for Compatible Synology NAS models (check Synology’s compatibility list).

More memory for a more capable NAS.

More Memory for Your NAS Workloads

A NAS running many users, containers, virtual machines or caching runs short of memory quickly, which slows file access and background tasks.

This 4GB DDR4 SO-DIMM module adds capacity for file services, apps and virtualisation on compatible Synology NAS systems.

Specifications That Match Your System

Key specs: DDR4, 2666 MT/s, PC4-21300, 260-pin, SODIMM, 1.2V. Match the memory type, form factor and speed your system supports.

Stable, Tested Performance

Each module is tested for stable operation at its rated speed and timings.

Setup Instructions

How to Install the Memory

1. Shut down the NAS from its management interface and unplug the power cable.
2. Open the memory slot cover as described in the NAS hardware guide.
3. Insert the module, aligning the notch, until it clicks into place.
4. Close the cover, power on and confirm the new memory size in the NAS system information.