QNAP RAM-16GDR4D0-UD-3200 16GB DDR4 UDIMM Memory Module
Overview
The RAM-16GDR4D0-UD-3200 is a 16GB DDR4 UDIMM running at 3200 MHz, designed as a genuine QNAP memory upgrade for NAS appliances that accept UDIMM DDR4 modules. Installing this module brings single-slot systems to their maximum supported memory ceiling in one step — relevant when running memory-intensive workloads such as multiple concurrent NAS virtual machines, heavy snapshot schedules, or large surveillance recording pools. Factory-new, genuine QNAP-sourced RAM eliminates compatibility guesswork that third-party DIMMs introduce on tightly validated NAS platforms.
Compatibility
This module is validated for QNAP NAS systems that specify a single UDIMM DDR4 slot with a 16GB maximum. Confirmed compatible platform: the QNAP TS-432PXU, which ships with 2GB UDIMM DDR4 installed and supports a maximum of 16GB (1 × 16GB) in its single UDIMM slot. Check your specific NAS model's hardware specification page to confirm the slot type before ordering — QNAP units with SODIMM slots (such as the TS-432X, which uses 1 × SODIMM DDR4) are not compatible with this UDIMM module. UDIMM and SODIMM are physically distinct and non-interchangeable form factors.
Installation Notes
Power down and unplug the NAS completely before handling memory. Ground yourself via wrist strap or chassis contact before touching the module — DDR4 DIMMs are static-sensitive. On the TS-432PXU, memory is accessed by removing the unit from the rack and opening the chassis per QNAP's service guide. Seat the module firmly until both retention clips engage. On single-slot systems, the existing factory DIMM must be removed and replaced with this 16GB module — there is no second slot for additive expansion. Confirm the NAS BIOS/firmware recognizes the full 16GB on first boot.
