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🚀 Upgrade your laptop’s brainpower — because speed waits for no one!
The Crucial 32GB Kit (16GBx2) DDR4 PC4-21300 is a high-performance, dual-channel memory upgrade featuring 2666 MHz speed and a compact 260-pin SODIMM form factor. Designed for laptops and compact systems, it offers low voltage (1.2V) operation, CL19 latency, and broad compatibility including AMD Ryzen platforms. This kit delivers a seamless plug-and-play experience with a limited lifetime warranty, making it the go-to choice for professionals demanding fast, reliable multitasking power.









| ASIN | B071H38422 |
| Additional Features | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^32GB Kit (16GBx2) | Error Checking^NON-ECC | Megabytes^32768 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW |
| Best Sellers Rank | #230 in Computer Memory |
| Brand | Crucial |
| Built-In Media | DDR4 Laptop DRAM |
| Column Address Strobe Latency | 17 |
| Compatible Devices | Laptop |
| Computer Memory Size | 32 GB |
| Customer Reviews | 4.8 out of 5 stars 5,402 Reviews |
| Form Factor | SO-DIMM |
| Global Trade Identification Number | 00649528780157 |
| Item Type Name | Crucial 32GB Kit (16GBx2) DDR4 2666 MT/s (PC4-21300) DR x8 SODIMM 260-Pin Memory - CT2K16G4SFD8266 |
| Item Weight | 9.07 g |
| Manufacturer | Crucial Technology |
| Memory Form Factor | SODIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Mfr Part Number | CT2K16G4SFD8266 |
| Model Name | Crucial DDR4 2666 MT/s SODIMM |
| Model Number | CT2K16G4SFD8266 |
| Number of Items | 2 |
| Number of Pins | 260 |
| RAM Memory Technology | DRAM |
| RAM Size | 32 GB |
| Special Feature | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^32GB Kit (16GBx2) | Error Checking^NON-ECC | Megabytes^32768 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW Special Feature nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^32GB Kit (16GBx2) | Error Checking^NON-ECC | Megabytes^32768 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW See more |
| UPC | 649528780157 |
| Unit Count | 2 count |
| Voltage | 1.2 volts_of_direct_current |
| Warranty Description | Limited lifetime warranty |
J**C
Works at 2666 MHz in Acer Predator 2019
2 things: Great product and great customer service. Opening the up and installing them in my laptop was a breeze, and I ended up ordering the day before a pretty good sale, so they allowed me to later return the original for a refund with no hassle. However, Crucial might have missed quite a few sales because their website doesn't show the 1660ti 2019 Predator as compatible (and everyone with a predator upgrades their stuff because they are made to be easily modded). Officially, for some reason Acer listed a max of 2333 MHz, but the 2019 Acer Predator US version can use this at the full 2666 (I checked and that's what windows shows it is operating at). It feels pretty awesome to have a metric ton of things open and check to realize you still have over 20 gigs of ram left. If you've got a laptop and it says it is capped lower then you might want to check forums, bc this may very well be perfect for you but not show your model as compatible. If you've got the predator I mentioned earlier: GET THIS ONE RIGHT HERE! I agonized over what to pick, and here we are over 2 months later and I know for sure I made the right choice.
A**N
Easy Upgrade For 2018 Mac Mini
Okay. So this just came today, and I installed it in about 30 minutes while watching the 9to5mac upgrade video and being extra careful. Everything was honestly very straight-forward and fairly easy for anyone who is comfortable with tools in their hand. The screws are, of course, small, and can take a steady hand. I highly recommend a magnetic driver for this. Also, I haven't read this anywhere yet, but I noticed that there was blue Loctite on almost every screw I removed, so I added a drop to each one of those screws before replacing. This may not be necessary, but Loctite is cheap, so why risk it? Blue Loctite is made hold things in place, yet still be removable. Once you remove a screw however, it should always be re-applied. Just because you can still see it on the screw, doesn't mean it's still going to hold. It's also very useful on anything else you may assemble that vibrates, moves, or bears weight. Basically any screw that you think has a chance of backing out over time. I personally don't want one of those tiny screws on my expensive Mac falling out internally and damaging/destroying electronics, so I'm surprised this isn't suggested ion any of the upgrade videos/articles I've looked at. I struggled the most with plugging the antenna cable back in (fingers too big?), but got it to go after a handful of attempts. I also used an iFixit tool kit that I purchased here on Amazon. https://smile.amazon.com/iFixit-IF145-299-4-Driver-Bit-64pc/dp/B0189YWOIO/ref=sr_1_5?crid=385H6QIPQLVSQ&keywords=ifixit+essential+electronics+tool+kit&qid=1561248330&s=gateway&sprefix=fixit%2Caps%2C150&sr=8-5 This is a very solid tool kit that I will get a lot of use from. Highly recommended. This RAM was accepted instantly by my Mini and has made this thing blazing-fast. In summary, for about 30 minutes of your time and $130, you get $600 worth of factory speed on your new computer. If your clumsy, rich, or both - just pay Apple when you build your Mac. If you have a basic ability with tools, and a steady hand - this is a no-brainer. I'll definitely update this review if I see any problems with my computer going forward, but as of now, 5 stars.
T**I
I bought 32GB 2666MHz and got 16GB 2400MHz! Update: I got the right product.
The product works, but I have to go over the process of removing the new ram, installing the old one back, waiting for the return, and all that. The installation is easy and the (wrong) product was packed well. There was a problem with the labels as you can see in the first picture. Update: I got the right product after requesting for a return. Amazon delivery was efficient and I had the right product 2x16GB 2666MHz after two days. A little inconvenient, but not the worst. It is working just fine and the system had no problems identifying the RAM. If you are installing the RAM on a Mac mini 2018, make sure that the RAM is firm and secured in place, and that the little metal holder aligns with the small holes on the RAM.
L**.
No worries with Crucial RAM. It just works!
I never have any issues with standard Crucial RAM, and it's my go to choice when upgrading a laptop or advising clients who are upgrading their systems. No frills or RGB lights, just consistent performance and reliability at a decent price. Given that RAM is one of the most important components to consider when building or upgrading a system, I steer clear of less expensive options from other companies. Crucial is a consumer / SMB brand of the company Micron, the world leader in memory manufacturing.
J**H
Great upgrade
This expansion really speeds up the workflow and helps a lot with the video Editing and it is compatible with the iMac that I purchased.
D**E
Helped a lot for video editing with DaVinci Resolve
I have a Dell XPS 9570 with 500gb storage and 16gb of RAM. I often film in 4k 30fps. Whenever I was editing with DaVinci Resolve my timeline would stutter and I've been dealing with it for years. I just dropped this new ram in today and I wish I did it forever ago. No more timeline stuttering. It works awesome and it will save me tons of time during the editing process. So ya, if you have the same setup as I do and want a better computer experience overall. Get this ram. Now I'm deciding if I want to get 1tb of Samsung SSD.
M**I
Working Great in a Dell Inspiron (5570), but Doesn't Run at its Full Potential.
Great value and relatively easy installation. Dell specifies 2400mhz DDR4 memory (PC4-19200) for my laptop, but Crucial listed this kit (32GB DDR4 2666 (PC4-21300) as being compatible. Having had good experience with Crucial's memory kits, I opted for this kit over the OEM recommendations. I can confirm that it works great, with one caveat; the memory only runs at 2400mhz in my Inspiron 5570, instead of at it's rated speed of 2666mhz. From what I can tell, it is a built in limitation of the laptop (not the memory modules). My laptop's BIOS doesn't allow me to adjust the memory settings, and they appear to be hard coded by Dell to not allow adjusting the memory settings. For me it's not that big of an issue, as this kit was actually a few bucks cheaper than the OEM specific 2400Mhz 32GB kit that Crucial offers as well.
C**A
Good
Super easy to install
H**N
Amazing
I upgraded my iMac 2019 now and it's work smoothly and it's look faster. Thank you so much for your cooperation.
P**L
Fantastic upgrade for the Mac Mini 2018
I was a bit hesitant to do this myself but when I saw the price that Apple is asking for a RAM upgrade... All of a sudden I found motivation! Took me 30 minutes to install. I was relieved to see my Mac Mini boot and detect the RAM. I ran the official diagnostics and it's all good. So 15 minutes after the procedure I find myself typing this, no issue so far and I hope it will stay that way for the next five years. Quick note for the DIYers wanting to upgrade the RAM on the Mini 2018: read the iFixit guide, watch the videos, work in good light, wash your hands and grab a good tool kit, I was using the iFixit toolkit that's available on Amazon, excellent. The hardest part was to detach/reattach the PS connector, and to reattach the antenna connector. No big deal though, breathe and take your time ;-)
A**9
Kit perfetto per Imac 2019 Cpu i9 3.6 8 core
Kit perfetto per fare l'upgrade della ram a un prezzo irrisorio rispetto a Apple. facile da montare, riconosciuta immediatamente, fatti tutti i test di stress della ram i risultati sono eccellenti. non mischiate le ram con quelle orinali per avere 40 gb e far lavorare male la ram, se avete bisogno di piu' memoria comprate un altro kit da 2x16 . ma 32 gb di ram sono tanti .
J**C
Rendimiento excepional...!!!
Tengo un portátil ASUS que llevaba de fábrica 16 Gb. Como ya lleva algunos años, he querido seguir aprovechando el portátil y de ahí la compra de este kit de memoria de 32 Gb. Se nota bastante a la hora de mantener varas aplicaciones abierta que necesitan bastante para moverlas. Soy técnico en construcción y utilizo programas que son ya "pesados" de por sí y encima son muy exigentes con las memora RAM. El kit lo compré en reacondiconado a un buen precio y viene muy bien embalado. El montaje no puede ser más sencillo: ante todo, quitar la posible electricidad estática que tengamos tocando una parte cualquiera metálica de nuestro alrededor; posteriormente para desmontar la antigua memoria, hay que liberar las presillas laterales del banco de memoria para sacar los antiguos módulos de memoria y encarjar los nuevos perfectamente. El ordenador ha reconocido perfectamente la memoria y ahora va también más ráipido.
J**S
iMac 2019 5k
Very easy to install, worked perfectly, great price, iMac no longer has 'not enough memory' error. Use Adobe photo and video tools & Final Cut Pro, there's certainly some speed improvements, also can have many many browser windows open, slack etc all the same time, all works as expected. 4k YouTube vids no longer buffer.
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