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The Crucial CT8G4DFRA266 is an 8GB DDR4 desktop memory module running at 2666 MHz with CL19 latency, designed to enhance desktop performance by increasing bandwidth up to 32% and reducing power consumption by 40%. It supports faster burst access speeds and is optimized for next-generation processors, making it an easy, affordable, and reliable upgrade backed by Micron’s industry-leading quality and a limited lifetime warranty.







| ASIN | B08C4QF5N4 |
| Best Sellers Rank | 42,096 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 220 in Computer Memory |
| Brand | Crucial |
| Brand Name | Crucial |
| Column Address Strobe Latency | CL19 |
| Compatible Devices | Desktop |
| Compatible devices | Desktop |
| Computer memory size | 8 GB |
| Customer Reviews | 4.7 out of 5 stars 5,290 Reviews |
| Data Transfer Rate | 1 Megabits Per Second |
| EU Spare Part Availability Duration | 2 Years |
| Form Factor | DIMM |
| Global Trade Identification Number | 00649528903501 |
| Item Type Name | PC & Laptop Accessories |
| Item Weight | 0.5 Ounces |
| Manufacturer | Crucial |
| Manufacturer Part Number | CT8G4DFRA266 |
| Memory Form Factor | DIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Memory speed | 2666 MHz |
| Model Name | Crucial 2666 MT/s DIMMS |
| Model Number | CT8G4DFRA266 |
| Number of Pins | 240 |
| Product Features | Ecc |
| Product Warranty | Limited Lifetime Warranty |
| RAM Memory Technology | DDR4 |
| RAM Size | 8 GB |
| RAM memory technology | DDR4 |
| Special feature | Ecc |
| UPC | 649528903501 |
| Unit Count | 1.0 count |
| Voltage | 1.2 Volts |
S**R
Necessary addition
Bought a pre-built due to the GPU market being in a bad state, thing came with 8GB of RAM (this model) which would have been fine for my needs but the numpties that built it went with a single module as opposed to 2x4, leaving me with a rig running in single channel. Happy with the rig mind, but this was a much needed upgrade, both for future proofing and performance improvements all around. Ideally I'd have RAM at higher speed, 3200 is a good sweet spot but I didn't see the need to fork out £70 - 80 for another two sticks and picked up another one of these to tide me over for a bit instead. Easy to install, as RAM should be and cheap + cheerful.
L**N
Fantastic ram stick
I have a prebuilt (Acer n50 600) that I've upgraded to 16gb. I already had a 8gb stick so decided to get another stick. I bought a different ram stick that didn't work with my system (it gave me a long beep, indicating memory issues, although unsure if it was a faulty stick), after looking up my pc model number and using a crucial checker, it's suggested this ram stick. So I bought it and it turned on first time and recognised the same speed. Very happy purchased and worked like charm and quick 2 day shipping. Would recommend 🤩
O**R
Good and cheaper than Crucial direct
I purchased this to upgrade a Dell 8900 or something similar, I checked Crucial direct and the price was 25% higher than Amazon. Easy to install, works fine and Crucial are pretty reliable.
M**O
Very good for dell xps8930
Needed to add some ram to my dell pc. This came in handy as had almost identical specifications to the original ram sticks(so the ram speed would be maintained) and were like a third of the price of ordering directly from dell. Plus crucial has a name to live up to, so the quality is mostly good. Just installed and no configuration issue or anything. Pc moves smoother now.
S**L
good product and working 1st time, but be aware you can't mix and match with other brands!
For a novice like, it took a while to figure out that what's the right memory config for my kid's HP desktop pc which was hosting a 4gb samsung ram but slowing down by every minute because of windows 10(i know!). After going through different reviews and delivery lead time, I opted for it with the unrealistic hope that the total memory will increase to 12gb. But as many expect(unlike me) the computer wont recognise the two rams from different brands, so I ended up taking the samsung one off and putting this one on..I might opt for another of this in the coming 2-3 months, if it is stable and running smoothly to increase the ram to 16GB. Nothing of the fault of the product but this wasnt mentioned anywhere in spec, so I thought I should mention this to make other novices like me to be aware..:)
L**O
Essential upgrade easy way
I was sceptical about compatibility but crucial website gave me the Amazon link of compatible RAM. Works perfect and my Vostro desktop is now 16 Gigs strong. Dell Vostro 3471 i5-9400 model. Perfect value for money
J**L
upgrade
I ordered this yo upgrade my PC it arrived on time and was easy to install . I has worked perfectly and made a great difference to mu PC
T**Y
Good quality reliable memory
A good quality memory at a decent price I found this to be very reliable with no problems
ش**ف
منتج جيد
يعمل معي بكفاءة حتي الأن
A**R
Much better now!
Hi! Great Upgrade. Made a huge difference. I got this for my desktop (this is for desktops, not laptops). My HP was running super slow—apps were dragging, web pages took forever, and even simple stuff was a pain. Definitely just not enough RAM for what I needed. You probably have at least one memory expansion port in your desktop and so this goes in one of them. Installing it was way easy. You unplug it, take off the case with a screwdriver, find the RAM slots on the motherboard, line up the little notchs, and push it in until it clicks. That's it. It will recognize the new RAM right away. Everything runs smoother now—no more lag, things open fast, and multitasking doesn’t slow it down anymore. If your desktop’s been crawling like mine was, this is 100% worth it.
P**.
very good, all ok!
very good, all ok!
M**C
Excellent ram board easy price
Just installed the Ram chip of 8GB today. Excellent results. Crucial board with Micron chip set. Installed 8GB in a Dell Inspiron 3670 that had existing 8GB from Dell manufacturing. The unit has an i3 8100. Basic chip but the 3670 can take 32GB of ram. Not a gamer so I will never need this. The task manager results show I now have 11GB available. Prior to the ram increase TM displayed only 3GB available. I did make an error on install and did not seat the ram chip all the way down this caused the amber power flashing light on the power button to blink. Grabbed a flashlight to inspect and found that the locks on either side had closed but the board still required an extra press in. Then the notches on the board ends were completely seated in the slot and no issues. Excellent buy this week as price is down to 36 bucks wow what a deal.
V**C
Impeccable
Impeccable. Ça fait toute la différence sur mon PC, beaucoup plus réactif. Installation simple et rapide. Nickel.
Trustpilot
2 weeks ago
4 days ago