QNAP RAM-16GDR4K0-SO-3200 16GB DDR4 SO-DIMM Memory Module
Overview
The RAM-16GDR4K0-SO-3200 is a 16GB DDR4 SO-DIMM running at 3200 MHz, sourced direct from QNAP for use in compatible QNAP NAS enclosures. If your NAS is bottlenecking under simultaneous VM workloads, heavy surveillance stream indexing, or multi-user file serving, this module is the most direct fix — more memory means fewer cache misses and more headroom for QTS or QuTS hero to juggle concurrent processes without swapping to disk. Installing a genuine QNAP memory module eliminates compatibility risk that comes with third-party SO-DIMMs, which can trigger memory errors or be outright rejected during POST on QNAP hardware.
Compatibility
This module is designed for QNAP NAS systems with SO-DIMM DDR4 slots. Verified compatible with the TS-855eU-RP series, which ships with 8GB non-ECC DDR4 and supports up to 64GB across two SO-DIMM slots — installing two RAM-16GDR4K0-SO-3200 modules brings you to 32GB total, well within the platform ceiling. The TS-855eU-RP slot spec explicitly supports ECC memory; this module is non-ECC (K0 designation), so verify your target NAS's ECC requirement before ordering. For other QNAP NAS models with SO-DIMM DDR4 expansion slots, cross-reference the system's memory compatibility list on QNAP's product specs page — slot count and maximum capacity vary by enclosure. Do not mix this module with DDR3 or DDR4L systems; the 3200 MHz speed will downclock to match the platform's supported frequency if the host controller runs at a lower speed.
Installation Notes
Installation requires removing the NAS case cover: loosen the three rear screws, slide off the cover, then locate the SO-DIMM slot on the board. Seat the module at an angle, press flat until the retention clips engage. No tools beyond a standard Phillips screwdriver are needed. Power down and disconnect the unit before opening — hot-swap memory is not supported on these platforms. If expanding from a single-module configuration, installing a second matching module may enable dual-channel mode depending on the host controller — check the specific NAS memory architecture before assuming dual-channel throughput gains.
