OWC 16GB DDR4 2666 CL19 2Rx8 260-pin SODIMM memory upgrade

Compatible QNAP NAS upgrade

This 16GB DDR4 2666 SODIMM is built for QNAP TVS-672N, TVS-673e, TVS-872N, TVS-873e and TVS-951X systems. It installs as a single module to expand memory capacity for virtualisation, container workloads and large file caches. The unbuffered, non-ECC design matches the factory specification for these NAS platforms. JEDEC compliance ensures the upgrade is warranty-safe for the host device.

Replaces QNAP factory modules

The module substitutes QNAP part numbers RAM-16GDR4T0-SO-2666, RAM-16GDR4K0-SO-2666 and RAM-16GDR4K1-SO-2666. Upgrading is worthwhile when the existing 8GB or 16GB configuration limits concurrent VMs or Docker containers. Backward compatibility with 2400 and 2133 speeds allows use in older slots, though the system will run at the lower frequency. Builders needing ECC registered memory or capacities above 16GB per slot should look elsewhere.

Sustained NAS workload behaviour

Continuous indexing, snapshot replication and encryption tasks keep the module at its rated 1.2V without a heat spreader. The CL19 latency and 2Rx8 organisation deliver steady throughput for multi-user file access over long periods. Validation at the OWC lab confirms stability under extended load rather than brief benchmark runs. Systems running 24/7 services benefit from the consistent signal integrity of the JEDEC-standard PCB.