Timetec

Timetec 4GB Replacement

Name: Timetec 4GB Replacement for Synology D3NS1866L-4G Non-ECC Unbuffered SODIMM DDR3L 1866Mhz PC3L-14900 1.35V Memory RAM (Compatible for DS620slim
Brand: Timetec
SKU: B00RY1JBEY

Bottom line: The Timetec 4GB Replacement is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Live pricing on eBay

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

🛒 See live eBay price Also on Amazon — Check price → Compare to similar memory & ram

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Replacement for an original Synology D3NS1866L-4G module

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Used and vintage listings vary by seller and condition — check the listing photos, description and return terms before buying

SpecPicks Verdict

SpecPicks scored Timetec 4GB Replacement using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Timetec's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

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
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	1.5 Volts
RAM Size	4 GB
Form Factor	SO-DIMM
Memory Speed	1866 MHz
Model Number	MT8JTF51264AZ-1G6E1
Number of Pins	204
Mfr Part Number	MT8JTF51264AZ-1G6E1
Memory Generation	DDR3L
Compatible Devices	Server
Data Transfer Rate	1866 MHz
Memory Form Factor	UDIMM
Additional Features	Lightweight
Computer Memory Size	4 GB
RAM Memory Technology	SO-DIMM
Column Address Strobe Latency	13
Full listing title	Timetec 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)

Ready to buy?

Timetec 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 vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

See live eBay listings → Check Amazon listing →