The 4GB DDR4 2666 MT/s ECC UDIMM Server Memory Module from Crucial allows you to increase system performance with memory speeds up to 2666 MT/s and densities up to 4GB. It operates at 1.2V and is compatible with systems that accepts 288-pin DIMM modules.
The 4GB DDR4 2666 MT/s ECC UDIMM Server Memory Module from Crucial allows you to increase system performance with memory speeds up to 2666 MT/s and densities up to 4GB. It operates at 1.2V and is compatible with systems that accepts 288-pin DIMM modules.
The 4GB DDR4 2666 MT/s ECC UDIMM Server Memory Module from Crucial allows you to increase system performance with memory speeds up to 2666 MT/s and densities up to 4GB. It operates at 1.2V and is compatible with systems that accepts 288-pin DIMM modules.
The 4GB DDR4 2666 MT/s ECC UDIMM Server Memory Module from Crucial allows you to increase system performance with memory speeds up to 2666 MT/s and densities up to 4GB. It operates at 1.2V and is compatible with systems that accepts 288-pin DIMM modules.
Last updated at 05/13/2026 05:05:17
Crucial 4GB DDR4-2666 SR x8 ECC EUDIMM | CT4G4WFS8266 by Ramcity
Delivery between 18–21 May $13.95
originally posted on lazada.com.ph
Received the item in just 2 days after purchasing it. It's working as intended after installing it. Upgraded from 8GB to 16GB on my Lenovo Ideapad l340 Gaming. Sulit na sulit to, Crucial brand. Thanks seller, madali kausap.
originally posted on shopee.ph
Performance:not much difference in gaming but makes multitasking faster.Best Feature:cost.Product Quality:high quality yet cheap.it came early.
originally posted on newegg.com
Only one of the 16G RAM sticks worked. Second stick was defective, was returned and replaced. Replacement caused system to crash after a few minutes. Got a refund for second stick. Now, after 2 months of use, first stick causes system to crash on startup. Glad I saved the RAM my machine came with. No problem with it. If you are considering Crucial RAM, better to just avoid it.
| Capacity | 4GB (1x 4GB) |
| Voltage | 1.2V |
| Technology | DDR4 |
| Error Correction | ECC |
| Signal Processing | Unbuffered |
Crucial 4GB DDR4-2666 SR x8 ECC EUDIMM | CT4G4WFS8266 by Ramcity
Delivery between 18–21 May $13.95
Received the item in just 2 days after purchasing it. It's working as intended after installing it. Upgraded from 8GB to 16GB on my Lenovo Ideapad l340 Gaming. Sulit na sulit to, Crucial brand. Thanks seller, madali kausap.
Performance:not much difference in gaming but makes multitasking faster.Best Feature:cost.Product Quality:high quality yet cheap.it came early.
Only one of the 16G RAM sticks worked. Second stick was defective, was returned and replaced. Replacement caused system to crash after a few minutes. Got a refund for second stick. Now, after 2 months of use, first stick causes system to crash on startup. Glad I saved the RAM my machine came with. No problem with it. If you are considering Crucial RAM, better to just avoid it.
Cons: Slightly more expensive than generic ram. Pros: 1) Each ram stick is serialized - a nice touch if this is important to you. Pros: 2) Of the 4 each 8GB ram modules I have purchased, in 2 separate orders, all have operated flawlessly at the rated speed. This leads me to believe the quality of parts that make up these memory modules is possibly better than that of some of their generic competitors. Purchasing this, what is in my opinion a better quality product, saves the hassle of having to take pictures of a defective product, waiting for authorization to return it, packaging it up, going to the post office to send it back, and then having to wait for a refund.
I'm a professional motion designer, and up until a week ago, I was working with 12 GB of RAM. Adding an additional 20 GB by installing these two cards has made my life much better. Way fewer crashes, multitasking between Adobe programs work great, and my RAM Previews load much faster. I really appreciated the Crucial team's website, which has a downloadable .exe which will recommend RAM for your machine. As someone making their first venture into tinkering with hardware, it was very helpful so I could find what would fit my machine without having to open my box.
Tommy Hilfiger is known for producing quality products, and this shirt is absolutely no exception. It came well packaged, and I could tell when unwrapping and unpinning that this shirt was crafted with care. The color is rich and vibrant, and it hasn’t faded with repeated washings. It’s held it’s shape and size, it’s collar has remained crisp and tight, and the stitching looks impeccable.The cut is slim, and it stays tucked into my pants with regular activity. The collar opens wider than I’m used to (instead of mostly going down, this turns out at closer to a 45 degree angle), so I’m not crazy about how it looks with a tie, but that’s just a personal style issue (I’m pretty traditional typically.). It looks great when I wear it alone, and it looks especially sharp ... MoreTommy Hilfiger is known for producing quality products, and this shirt is absolutely no exception. It came well packaged, and I could tell when unwrapping and unpinning that this shirt was crafted with care. The color is rich and vibrant, and it hasn’t faded with repeated washings. It’s held it’s shape and size, it’s collar has remained crisp and tight, and the stitching looks impeccable.The cut is slim, and it stays tucked into my pants with regular activity. The collar opens wider than I’m used to (instead of mostly going down, this turns out at closer to a 45 degree angle), so I’m not crazy about how it looks with a tie, but that’s just a personal style issue (I’m pretty traditional typically.). It looks great when I wear it alone, and it looks especially sharp underneath a blazer.The fabric is light and breathable, which makes it extremely comfortable when wearing it in the often heavy Oklahoma humidity.It fits as expected, and I’m a very happy customer. Will definitely recommend!
(review has been updated 2020-07-03) This ram seemed to operate correctly (recognized by Windows 10 with multi-bit correction) but initially my ASRock x470 Master SLI/ac motherboard didn't like warm reboot with this ram. A BIOS update was required. (Update 10/22/2019) After a few days passed after submitting a ticket with ASRock they replied and I was able to successfully test a beta BIOS. The initial recognition after installing the ram is fixed along with the warm reboot and boot loop problems are fixed when using this RAM. Working well. Thank you ASRock! Stock Timings: 19-19-19-43-61 @1.2v (Update 12/04/2019) Working on beta BIOS L3.67 "AMD AGESA Combo-AM4 1.0.0.4 Patch B" with Ryzen 7 3800x 32GB DDR4-2666 ok and overclock to DDR4-3200 - ok (2 dimms) 64GB ... More(review has been updated 2020-07-03) This ram seemed to operate correctly (recognized by Windows 10 with multi-bit correction) but initially my ASRock x470 Master SLI/ac motherboard didn't like warm reboot with this ram. A BIOS update was required. (Update 10/22/2019) After a few days passed after submitting a ticket with ASRock they replied and I was able to successfully test a beta BIOS. The initial recognition after installing the ram is fixed along with the warm reboot and boot loop problems are fixed when using this RAM. Working well. Thank you ASRock! Stock Timings: 19-19-19-43-61 @1.2v (Update 12/04/2019) Working on beta BIOS L3.67 "AMD AGESA Combo-AM4 1.0.0.4 Patch B" with Ryzen 7 3800x 32GB DDR4-2666 ok and overclock to DDR4-3200 - ok (2 dimms) 64GB DDR4-2666 ok and overclock to DDR4-3200 - ok (4 dimms) Overclock Timings: 20-20-20-44-66 tRFC=480 @1.35v Also works on ASRock B450M Pro4 w/ BIOS/UEFI 3.50 & Ryzen 5 2600 CPU. (Update 07/03/2020) Working on official BIOS P3.70 "AMD AGESA Combo-AM4 1.0.0.4 Patch B" with Ryzen 9 3950x 64GB DDR4-2666 ok - overclock to DDR4-3200 - ok (4 dimms) Overclock Timings: 20-20-20-44-66 tRFC=480 @1.35v Also works on ASRock B450M Pro4 w/ BIOS/UEFI 3.50 & Ryzen 5 2700 CPU.
| Capacity | 4GB (1x 4GB) |
| Voltage | 1.2V |
| Technology | DDR4 |
| Error Correction | ECC |
| Signal Processing | Unbuffered |