QNAP 4GB DDR4 Ram 2133 MHZ Long-Dimm 288 Pin - RAM-4GDR4-LD-2133

QNAP RAM-4GDR4-LD-2133 4GB DDR4 Long DIMM Memory Module

Overview

The RAM-4GDR4-LD-2133 is a 4GB DDR4 memory module running at 2133 MHz in a 288-pin Long DIMM form factor, designed to expand RAM capacity in compatible QNAP NAS systems. Adding memory directly impacts how many simultaneous users, applications, and virtual machines a NAS can handle without paging to disk — the right upgrade for deployments where the base installed RAM is becoming a throughput bottleneck under concurrent workloads.

Compatibility

This module is designed for QNAP NAS enclosures that specify DDR4 2133 MHz Long DIMM (288-pin) memory. Verify your specific NAS model's NAS memory compatibility list before ordering — not all QNAP enclosures accept Long DIMM; some require SO-DIMM. Confirmed Long DIMM form factor applies to select QNAP TVS and TES series rackmount and tower units that use full-length desktop-class DDR4 slots. Mixed-capacity configurations are generally supported when slots and speeds match, but consult the QNAP compatibility matrix for your exact chassis to confirm maximum addressable RAM per slot and total system ceiling. Using mismatched memory speeds can force the system bus to downclock all installed modules, negating the benefit of faster existing RAM.

Installation Notes

Power down the NAS and disconnect power before installing. Ground yourself to the chassis before handling the module — DDR4 is sensitive to electrostatic discharge. Seat the module firmly until both retention clips engage; a partially seated DIMM will prevent the system from posting. QNAP's QTS operating system will recognize the new capacity on next boot without additional configuration. If the system fails to boot after installation, reseat the module and confirm it is the correct form factor for your chassis.