Kingston 4GB DDR4-2666 SODIMM
KVR26S19S6/4
DDR42666MHz4GBSO-DIMM
RAM for Synology DS423+ (DS423+)
Model Years: 2023–2024
Max RAM: 6GBRAM Slots: 2RAM Type: DDR4 2666MHz
✓ RAM Upgradeable
Quick answer
Our data matches the Synology DS423+ (DS423+) with Kingston 4GB DDR4-2666 SODIMM (DDR4, SO-DIMM, 2666MHz, 4GB); Crucial 4GB DDR4-2666 SODIMM (DDR4, SO-DIMM, 2666MHz, 4GB).
Supported memory profile: DDR4, SO-DIMM, 2666MHz, up to 6GB max, 2 slots.
Before buying, confirm your exact model number, memory generation, form factor (SO-DIMM), speed, and maximum supported capacity. Live eBay listings are shown below and may change.
Compatible RAM for the Synology DS423+
Listings and prices are pulled from eBay and may change. Always verify compatibility before purchase. Listings are updated daily.
HIGH
Crucial 4GB DDR4-2666 SODIMM
CT4G4SFS8266
DDR42666MHz4GBSO-DIMM
Crucial 4GB DDR4-2666 SODIMM
6 listings
Frequently Asked Questions
What RAM fits the Synology DS423+ (DS423+)?
Based on our compatibility data, the Synology DS423+ (DS423+) supports DDR4, SO-DIMM, 2666MHz, up to 6GB max, 2 slots. Matched modules include Kingston 4GB DDR4-2666 SODIMM (DDR4, SO-DIMM, 2666MHz, 4GB); Crucial 4GB DDR4-2666 SODIMM (DDR4, SO-DIMM, 2666MHz, 4GB). Always confirm your exact model number before purchasing.
How do I verify RAM compatibility?
Check that your device label or manual shows DS423+ (or DS423+). Confirm memory generation, form factor (SO-DIMM), speed, slot count, and maximum supported capacity match the specs on this page before ordering.
Can I mix RAM speeds or capacities?
Many systems run best with matched pairs (same capacity and speed). Mixing capacities or speeds may work but can force lower speeds or single-channel mode — check your OEM documentation.
Are these listings live and current?
Current eBay listings for compatible RAM modules are shown below. Prices and availability change frequently — verify listing details and seller ratings before you buy.
RAM Upgrade Guide for the Synology DS423+
This device uses DDR4 at 2666MHz. Maximum supported capacity is 6GB.
This model has 2 RAM slots. Installing matched pairs (dual-channel) gives the best performance — use identical capacity modules in both slots.
Always power off and unplug your device before installing RAM. Ground yourself to avoid static discharge.