OWC 8GB DDR4 2400 CL17 1Rx8 UDIMM QNAP TS-677/832 series

OWC 8GB DDR4 2400 UDIMM for QNAP NAS

This 8GB DDR4 2400 CL17 UDIMM module is built for QNAP TS-677, TS-832PXU, TS-832PXU-RP, TS-832XU and TS-832XU-RP systems. It replaces QNAP part numbers RAM-8GDR4A0-UD-2400 and RAM-8GDR4A1-UD-2400. The module suits administrators expanding memory in these specific NAS units. Buyers needing ECC registered memory or capacities beyond 8GB per slot cannot use this part.

Installation is a standard UDIMM insertion

The 288-pin unbuffered DIMM fits the memory slots on the listed QNAP models without tools. Align the notch, press firmly until the retention clips click, then power on to verify the new capacity. The most common issue is seating the module incompletely, which leaves the system showing the original memory total. Reseating usually resolves this. No BIOS configuration is required on these appliances.

The decisive specification is 1Rx8 CL17 at 1.2V

This single-rank by eight organisation with CL17 latency matches the OEM timing the QNAP firmware expects. The JEDEC-standard 1.2V operation ensures compatibility with the platform's memory controller. Systems requiring dual-rank modules, lower latency bins or 1.35V operation will not work correctly with this module. Backward compatibility with 2133MHz buses is supported.