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Timetec 4GB DDR4 2666MHz Non-ECC Unbuffered SODIMM Replacement for Synology D4NESO-2666-4G (Compatible for RS820RP+, RS820+, DS920+, DS720+, DS420+, DS220+, DS2419+, DS2419+II, DS1819+, DVA3219, DS161
- Replacement for Synology D4NESO-2666-4G SODIMM RAM (DDR4 2666MHz PC4-21300 260 Pin Unbuffered Non-ECC 1.2V CL19 Single Rank 1Rx8 based 512x8)
- Compatible with 20 series: RS820RP+, RS820+, DS920+, DS720+, DS420+, DS220+
- Compatible with 19 series: DS2419+, DS2419+II, DS1819+, DVA3219
- Compatible with 18 series: DS1618+
- Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
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Overview
Specs
Reviews
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Timetec Memory of a lifetime
Compatible with (But not Limited to):
*Please click image for more compatible systems model
Need to know if this part is compatible?
Contact us with manufacturer and model information of your motherboard
Compatible with (But not Limited to):
*Please click image for more compatible systems model
Need to know if this part is compatible?
Contact us with manufacturer and model information of your motherboard
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 60 days
- This item is covered by Timetec International Inc Return Policy
Manufacturer Contact Info
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Timetec 4GB DDR4-2666 SODIMM is replacement memory for compatible Synology NAS models, including the DS920+, DS720+, DS420+, DS220+, RS820+, and listed 18- and 19-series systems. It suits owners seeking a 4GB module matching the specified D4NESO-2666-4G memory type.
Recommended For
- Owners of the listed Synology models who need a 4GB DDR4-2666 SODIMM replacement matching the D4NESO-2666-4G type; confirm the NAS model before ordering.
- Synology NAS owners running several apps or Docker containers who have confirmed memory pressure and want to add a 4GB module; community reports describe this kind of workload as a reason to consider a RAM upgrade.
- DS920+ owners whose workload is straining the stock 4GB and who want the model’s 4GB add-on option; a review notes that virtual-machine use can put strain on the NAS without additional memory.
- Owners of a listed NAS replacing a failed or missing expansion module who want a 4GB, non-ECC, unbuffered SO-DIMM with the listed DDR4-2666 specifications.
Real-World Use Scenarios
- Running several lightweight Docker or Container Manager apps alongside normal NAS services: the added memory can give containers more room and help the NAS stay responsive when memory was a bottleneck; it does not remove CPU or storage limits.
- Using Virtual Machine Manager for a modest virtual machine while the NAS also handles file services: extra memory can ease memory pressure, but it will not make a memory-intensive VM run without limits.
- Hosting a Plex or other media library while running additional NAS apps: extra memory can help when several services compete for RAM, but it does not by itself improve video transcoding or network speed.
- Running background NAS tasks—such as photo or file indexing, syncing, or backups—while accessing shared files: added memory can provide more headroom for apps and services, especially if the NAS was already running short on RAM.
- Adding memory to a listed Synology NAS that is nearing its RAM capacity: this 4GB module can provide extra room for apps and multitasking, but the benefit depends on the NAS model and workload; basic file sharing may show little noticeable change.