Timetec DDR3-1866L 4GB Replacement for Synology D3NS1866L-4G Non-ECC Unbuffered SODIMM DDR3L 1866Mhz PC3L-14900 1.35V Memory RAM (Compatible for DS620slim, DS218+, DS718+, DS918+, DS418play)
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies Timetec DDR3-1866L 4GB Replacement for Synology D3NS1866L-4G Non-ECC… as a solid pick with broad community endorsement in the PC & gaming hardware category, based on 226 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Timetec's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.4★ customer rating
- ✓ Replacement for an original Synology D3NS1866L-4G module
- ✓ Backed by Timetec's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Replacement for an original Synology D3NS1866L-4G module
- Compatible for Synology DiskStation 20 series:DS620slim
- Compatible for Synology DiskStation 18 series: DS918+, DS718+, DS418play, DS218+
- DDR3L 1866MHz PC3L-14900 204-Pin Unbuffered Non ECC 1.35V CL13 Single Rank 1Rx8 based 512x8 Module Size: 4GB Package: 1x4GB
- Guaranteed – Lifetime warranty from Purchase Date Free technical support
Full Specifications
| Brand | Timetec |
|---|---|
| Weight | 4g |
| Voltage | 1.35 Volts |
| RAM Size | 16 GB |
| Model Name | D3NS1866L-4G |
| Form Factor | SO-DIMM |
| Memory Speed | 2666 MHz |
| Model Number | 7 |
| Number of Pins | 204 |
| Mfr Part Number | 7 |
| Memory Generation | DDR3L |
| Compatible Devices | Laptop, Server |
| Data Transfer Rate | 2100 Megabytes Per Second |
| Memory Form Factor | SODIMM |
Ready to buy?
Timetec DDR3-1866L 4GB Replacement for Synology D3NS1866L-4G Non-ECC Unbuffered SODIMM DDR3L 1866Mhz PC3L-14900 1.35V Memory RAM (Compatible for DS620slim, DS218+, DS718+, DS918+, DS418play) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.