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Timetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V / 1.35V CL9 Dual Rank for Dell Optiplex 780 DT/MT/SFF Memory Ram Upgrade and More (Low Density 4GB)
Timetec

Timetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V / 1.35V CL9 Dual Rank

Bottom line: The Timetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V / ($14.99 on Amazon as of 2026-10-06): Listed for Dell Optiplex 780 DT, MT and SFF models; main trade-off: only 4GB per module; one stick per package.

$14.99

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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.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Listed for Dell Optiplex 780 DT, MT and SFF models
  • ✓ Dual voltage: runs at 1.35V or 1.5V
  • ✓ Low-density 2Rx8 layout (256x8 chips) suits older chipsets
  • ✓ Standard PC3-10600 1333MHz speed with CL9 timings
  • ✓ Lifetime warranty from purchase date plus free tech support

Cons

  • ✗ Only 4GB per module; one stick per package
  • ✗ 1333MHz is slower than DDR3-1600 kits
  • ✗ Desktop 240-pin only; will not fit laptops
  • ✗ Non-ECC unbuffered; not for boards that require ECC or registered RAM

Manufacturer description

The Timetec 4GB DDR3 / DDR3L 1333MHz memory module is a direct RAM upgrade for the Dell Optiplex 780 in DT, MT and SFF form factors, and for other desktops that take standard DDR3 memory. If your Optiplex is slow because it runs out of memory, adding a module like this is one of the simplest ways to bring an older office PC back into daily use. This is a 240-pin PC3-10600 module that runs at 1333MHz with CL9 timings. It is a dual-voltage DDR3L part, so it works at the JEDEC standard 1.35V or at 1.5V and fits boards that expect either voltage. The module is a dual rank 2Rx8 design built on…

SpecPicks Verdict

SpecPicks scored Timetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V /… 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.

Frequently Asked Questions

Will this Timetec 4GB stick work in my Dell Optiplex 780?

Yes. It is listed for the Optiplex 780 in DT, MT and SFF versions. It is a 240-pin DDR3/DDR3L 1333MHz PC3-10600 non-ECC unbuffered module, which is the type of memory that system uses.

Can I use this RAM in a laptop?

No. This is a 240-pin desktop module. Timetec states it is for desktop computers, not laptops, which need the smaller SO-DIMM form factor.

Does it run at 1.35V or 1.5V?

Both. It is a dual-voltage DDR3L module that meets the JEDEC 1.35V standard and also runs at 1.5V, so it works on boards that supply either voltage.

How many modules come in the package?

One. The package is 1x4GB. For 8GB or for dual-channel operation, buy two modules and install them in matching channel slots.

What warranty does Timetec offer on this memory?

Timetec offers a lifetime warranty from the purchase date and free technical support for this module.

Key Features

  • DDR3 / DDR3L 1333MHz PC3-10600 240-Pin Non-ECC Unbuffered 1.5V / 1.35V CL9 Dual Rank 2Rx8 based 256x8
  • Module Size: 4GB Package: 1x4GB ; JEDEC standard 1.35V, this is a dual voltage piece and can operate at 1.35V or 1.5V
  • Module Size: 4GB Package: 1x4GB For Desktop Computer, Not for Laptop
  • Guaranteed – Lifetime warranty from Purchase Date Free technical support

Full Specifications

BrandTimetec
Voltage1.5 Volts
RAM Size4 GB
Form FactorDIMM
Module Size4GB Package: 1x4GB ; JEDEC standard 1.35V, this is a dual voltage piece and can operate at 1.35V or 1.5V
Memory Speed1333 MHz
Model Number7
Number of Pins240
Mfr Part Number7
Memory GenerationDDR3
Compatible DevicesDesktop
Data Transfer Rate1333 MHz
Memory Form FactorUDIMM
Additional FeaturesNon ECC
Computer Memory Size4 GB
Warranty DescriptionLifetime Warranty
RAM Memory TechnologyDDR3, DDR3L
Column Address Strobe LatencyCL9
Full listing titleTimetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V / 1.35V CL9 Dual Rank for Dell Optiplex 780 DT/MT/SFF Memory Ram Upgrade and More (Low Density 4GB)

Ready to buy?

Timetec 4GB DDR3 / DDR3L 1333MHz PC3-10600 Non ECC Unbuffered 1.5V / 1.35V CL9 Dual Rank for Dell Optiplex 780 DT/MT/SFF Memory Ram Upgrade and More (Low Density 4GB) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $14.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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