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Crucial Technology CT25664AA800 2 GB 240-pin DIMM DDR2 PC2-6400 Memory Module

4.3 4.3 out of 5 stars 317 ratings
$15.86
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Purchase options and add-ons

Brand Micron
Computer Memory Size 2 GB
RAM Memory Technology DDR2 800
Memory Speed 800 MHz
Compatible Devices Desktop

About this item

  • 2 GB DIMM: 1.8V 256Meg x 64 PC Memory
  • Technology - DDR2 SDRAM
  • Form Factor - 240-pin DIMM
  • Form Factor -- 240-pin DIMM
  • Memory Speed -- 800MHz DDR2-800/PC2-6400

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Crucial Technology CT25664AA800 2 GB 240-pin DIMM DDR2 PC2-6400 Memory Module
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Crucial Technology CT25664AA800 2 GB 240-pin DIMM DDR2 PC2-6400 Memory Module
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Price$15.86$18.89-15% $14.06
Typical: $16.48		$19.99$27.90$151.93
Delivery
—
Get it as soon as Tuesday, May 7
Get it May 14 - 29
—
Get it as soon as Wednesday, May 8
—
Customer Ratings
4.34.3 out of 5 stars317
4.64.6 out of 5 stars398
5.05.0 out of 5 stars2
4.44.4 out of 5 stars47
4.64.6 out of 5 stars2,601
4.64.6 out of 5 stars2,601
Easy to install
5.0
4.7
—
—
4.9
4.9
Value for money
5.0
4.6
—
—
4.6
4.6
Sheerness
—
5.0
—
—
4.6
4.6
For gaming
—
3.7
—
—
3.8
3.8
Sold By
eStarDeals
Motoeagle-US
Eugee
MemoryMasters
A-Tech Components
A-Tech Components
computer memory size
2 GB
2 GB
4 GB
1 GB
4 GB
8 GB
memory speed
800 MHz
800 MHz
800 MHz
800 MHz
800 MHz
800 MHz
RAM tech
DDR2 800
DDR2
DDR2
SODIMM^NON-ECC^DDR2-800
DDR2
DDR2
number of items
1
4
2
1
2
2
data transfer rate
800 MHz
800 MHz
800 MHz
800 MHz
6400 megabytes per second
6400 megabytes per second
number of pins
240
240
240
200
240
240
compatible devices
Desktop
Desktop
—
Laptop
Desktop
Desktop

Product Description

Every day, you rely on your computer to make your life easier. A Crucial DRAM upgrade can help your system run faster, and it's one of the easiest, most affordable ways to improve system performance. Reap the benefits doing everything from everyday system tasks to mission-critical applications. For over 12 years, Crucial has been recognized as a leader in DRAM upgrades. Our products help people achieve greater system performance through improved productivity, reliability, and speed. As part of one of the world’s largest DRAM manufacturers—Micron Technology—our long tenure of engineering and manufacturing expertise allow us to build high-quality, system-specific memory solutions for customers. We back our products by guaranteeing system compatibility, limited lifetime warranties, and outstanding service and support. At Crucial, we're the Memory Experts.

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Crucial Technology CT25664AA800 2 GB 240-pin DIMM DDR2 PC2-6400 Memory Module

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
317 global ratings

Customers say

Customers like the performance, value, quality and ease of installation of the internal memory. They mention that it runs great with their PC, it's worth the money and that it clicks right in. They also appreciate the knowledge that it does as advertised and that Crucial is a great product.

AI-generated from the text of customer reviews

61 customers mention61 positive0 negative

Customers are satisfied with the performance of the memory. They mention that it runs great with their PC, has zero issues, and speeds up everything. Some say that it works with their current set up and that it's an excellent product.

"Works great and arrived quickly. Not too much more to say. I had a friend who was moving and getting rid of a bunch of things...." Read more

"...So I bought a second card and couldn't be happier. Game runs great, looks great (thanks to NVIDIA's updating), and Vista doesn't have a heartattack..." Read more

"I received the memory quickly and it works fine; however, the chip I received is not a Crucial branded chip...." Read more

"...Installed easily in just seconds and works great...." Read more

16 customers mention16 positive0 negative

Customers appreciate the value of the memory. They say it's a good deal, worth the money, and a great merchant. Some customers also mention that it'll work with their older PCs and is very cheap.

"...My PC now runs great! Softnetssale gave me a great price and it was delivered right on time." Read more

"...very cheap for a semi older pc with ddr2 RAM compatibility. worth the money" Read more

"Memory arrived on time and seems to be working well. Excellent upgrade for the price." Read more

"Easy to install and a great price." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the quality of the memory. They mention that it works great, it's good, and it'll be a nice upgrade for their computer. Some say that it'd be great for way old systems and that it performs well with the operating system.

"...Make sure it will fit your computer, but this is the best DDR2 desktop RAM I have found so far." Read more

"The memory works as expected. The bad thing is that for every windows upgrade more memory and faster computers are needed." Read more

"Promptly delivered and the memory works great. No problems at all...." Read more

"...if your computer requires DDR2, this memory is a nice upgrade." Read more

9 customers mention7 positive2 negative

Customers find the installation process of the internal memory to be easy. They mention that it clicks right in, performs flawlessly, and plugs and plays.

"...Hard to find any these days, so ordered this right away. Installed easily in just seconds and works great...." Read more

"Easy to install and a great price." Read more

"Exactly as advertised, clicked right in and performs flawlessly. if your computer requires DDR2, this memory is a nice upgrade." Read more

"...ram improperly can fry your mother board, and its pretty easy to install ram improperly because people are very careful when it comes to installing..." Read more

8 customers mention8 positive0 negative

Customers appreciate the knowledge of the seller. They say the memory is useful, and does as advertised. Customers also mention that the seller has great technical knowledge and helps with their issues.

"It worked fine but they have great technical knowledge and help too with their products." Read more

"Perfect solution; exactly as ordered, at the right price" Read more

"Bought these for my fiancee's Mid 2009 MacBook Pro, does a great job!!" Read more

"Great product! Product does as advertised and is useful. And the price cannot be beaten. Will buy this product again!" Read more

Top reviews from the United States

BurtB
5.0 out of 5 stars Good memory at a good price
Reviewed in the United States on September 4, 2016
Verified Purchase
Works great and arrived quickly. Not too much more to say. I had a friend who was moving and getting rid of a bunch of things. One was an older Dell 64 bit computer that they were giving away. This was pretty slow since it had the bare minimum of memory installed so Windoze really crawled.

So I ordered 8 GB of this memory and now that old slow machine is still usable as an additional windoze box. I use Windoze as little as possible since spend most of my time running Linux, but every now and then I need something that only runs on Windoze.

If I needed more of this memory in the future I would buy again.
One person found this helpful
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Perraith
5.0 out of 5 stars So far so good
Reviewed in the United States on December 14, 2010
Verified Purchase
Well I was trying to figure out how far I could push my pc as a gaming machine and I had already upgraded the RAM once with a single slot of the same chip. My machine ran Oblivion wonderfully (above average settings) so I wondered what other game was within easy reach of my PC and low-and-behold Mass Effect, a game I enjoyed even though only playing a few hours on a friends 360, was not only playable but - with a single expansion of similiar memory - it could run at high settings. So I bought a second card and couldn't be happier. Game runs great, looks great (thanks to NVIDIA's updating), and Vista doesn't have a heartattack if I'm running either game with a program or two in the background (It does take issue with Oblivion for some reason if I window out but I'm sure that's software related not my PC's memory capacity. Would definitely recommend this as a cheap but potentially game changing (pun) little upgrade for any PC (manufactured in the last three years) that supports it.
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Kevin
4.0 out of 5 stars May Not Be Crucial RAM-- But It Still Works Fine
Reviewed in the United States on January 15, 2015
Verified Purchase
I received the memory quickly and it works fine; however, the chip I received is not a Crucial branded chip. Alex at A-Tech components was extremely helpful and offered a resolution but it's honestly just not worth it for me to ship a $15 component back that is working fine.

It definitely bugs me that Amazon is selling this as Crucial RAM with a Crucial part number, but I would recommend A-Tech to anyone. Alex treated me like I spent $1500, not $15.

Information received from A-Tech regarding memory brand: "The memory you received is Micron, which is actually Crucial's parent company so the memory is the same quality and compatibility as Crucial memory."
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Brandon
5.0 out of 5 stars I'm glad I did and I'm also appreciative of Crucial
Reviewed in the United States on July 24, 2017
Verified Purchase
I've been working to upgrade an old off the shelf desktop in my spare time. Specifically, a Dell Inspiron 531, back from around the mid 2000's (2005-2008). As part of the upgrades, I'm trying to transition it from a 32 bit to 64 bit OS. Naturally to do this, I needed to upgrade the RAM but after reading through some old discussion forums, I heard a rumor that if the BIOS for the - default - motherboard, an Asus M2N61-AX, was updated, that it would gain the ability to recognize 8GB of RAM. But I didn't want to just act on a rumor, so I purchased one stick of 2 GB DDR2 RAM to test what I read about, since I had 3GB of RAM in this desktop already, along with a 64 Bit OS installed on an SSD to serve as the boot drive. If, after installing the new stick and booting up, the Inspiron 531 recognized the stick and in turn the total amount of RAM available as 5 GB, then it would prove what I read was correct. It was. Now, if the rest of the upgrades I have planned work out, I'll consider purchasing three more sticks to increase the RAM to 8 GB. Though regardless if I purchase more of this type or RAM or not, I'm glad I did and I'm also appreciative of Crucial. When it comes to SSDs and RAM, they can compete with other reliable vendors such as Sandisk, ADATA, Intel and Samsung; but, they can come out ahead in terms of being affordable. The latter being quite alright with me.
2 people found this helpful
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DAVID RUNKLE
5.0 out of 5 stars Get this before they are gone
Reviewed in the United States on January 1, 2013
Verified Purchase
I had a PC with 2 GB DDR2 memory. Read that this motherboard can handle up to 4 GB. Hard to find any these days, so ordered this right away. Installed easily in just seconds and works great. Even it you have never upgraded memory on a computer yourself, you can do this in about a minute and have no problems. Just shut down and turn off the computer, unplug it on the back of the computer (power cord only), and open the case. There is only one way to install the memory and it will not fit any other way. So, once it it clicked into place, just close the case, plug it in, and turn it on. Tada! More memory!
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JohnAroundTheCornerReviews
5.0 out of 5 stars BUT don't just order this stick because I recommend it. Be sure to order the stick that ...
Reviewed in the United States on July 19, 2014
Verified Purchase
My computer already had one 2 GB stick of memory in it, and had one empty slot, so I ordered this. When my computer nerd friend came over, he had it installed in minutes, and I now have double the memory in my mom's old compaq unit. Now, the computer doesn't slow down when I have 27 tabs open in my CHROME browser.

If you have an empty memory slot, then you should DEFINITELY get the same (or equivalent) memory that is in the other slot. Adding memory to your computer is the cheapest way to improve its performance.

BUT don't just order this stick because I recommend it. Be sure to order the stick that is compatible with your computer. If both of your slots are full, then you have to think about whether it is worth removing both of those and installing larger chipsets, but you need to review the technical requirements of your system to see if that will work. Your computer may already be at its maximum. If you don't know, ask a nerd.
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CJ
1.0 out of 5 stars Received BAD ram!!!
Reviewed in the United States on July 8, 2021
Verified Purchase
I just tried to use this ram in my PC and it booted up and a minute later my PC shuts down. I had to install my old ram. I've purchased this ram in the past and it worked just fine, not sure if this is the same seller or not. I just tried this ram a day ago after I purchased it a month ago. I wasn't in a hurry to install in the PC because it was doing just fine. I already had 2 crucial memory modules installed and 2 other generic memory modules installed. I wanted all 4 memory modules to be Crucial, but I had to go back to the 2 generic because these 2 I ordered are no good.
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Former
3.0 out of 5 stars it caused every computer I put it in to go ...
Reviewed in the United States on January 22, 2015
Verified Purchase
it caused every computer I put it in to go into a no post situation unless it was the only stick.
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Top reviews from other countries

Translate all reviews to English
JVEGA
5.0 out of 5 stars Produit acheté à moitié prix car reconditionné
Reviewed in France on August 14, 2018
Verified Purchase
Produit reçu sans aucun défaut, il était indiqué carte légèrement abimé, même à la loupe je n'ai rien constaté.
Installation sans soucis et reconnu par ma CM immédiatement. Par sécurité j'ai lancé un test approfondi de la mémoire.
Tout est OK et cela fonctionne parfaitement depuis 1 mois.
RAS
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José Luis Sánchez Montañés López de la Franca
5.0 out of 5 stars Rendimiento óptimo, muy buena memoria
Reviewed in Spain on November 16, 2015
Verified Purchase
Rendimiento óptimo, muy buena memoria, junto con un micro q6600 de cuatro núcleos ya bastante antiguo y una gráfica NVIDIA de las más modestas de la serie FX el equipo es capaz de correr perfectamente las aplicaciones y juegos más exigentes.
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klm
5.0 out of 5 stars Aufrüstung - einfach und problemlos
Reviewed in Germany on January 5, 2013
Verified Purchase
Die Weihnachtszeit konnte ich nutzen und habe meinen Rechner von XP auf Win 8 aufgerüstet.
Enpaß war der Hauptspeicher (bisher 2 GB) - darauf hin Aufrüstung mit dem Speicher: Crucial CT25664AA800 PC800 auf 2 x 2GB Arbeitsspeicher - zum Preis von 14,99 EUR je Modul akzeptabel günstig.
DDR3 wäre deutlich preiswerter; geht auf dem alten Board nicht - deshalb DDR2 verbaut.

Aus- / Einbau sehr einfach - Neustart und der Rechner läuft ....
Zu beachten ist lediglich, dass das Motherboard für den Speicher geeignet ist und dass beim Einbau keine elektrostatische Entladung stattfinden kann (Vorsicht bei Teppichboden!)

Je nach Board können bis zu 4 Module (8 GB) eingebaut werden - für meine Zwecke und Windows 8 (64-Bit-Version) reichen die 4 GB aber aus.

Performance und Stabilität einwandfrei. Dazu habe ich den Rechner für 48 Stunden unter Last laufen lassen).

Die Lieferung direkt vom Amazon-Partner angesichts der Weihnachtsfeiertage zügig und problemlos.

Noch kurz zu Win 8 Pro: macht im Gegensatz zu Win 7 auf einem normalen Desktop aus meiner Sicht wenig Sinn - zumal das Kacheldesign sehr gewöhnungsbedürftig ist. Mit entsprechenden Tools (ClassicShell - OpenSource) ist es aber sehr einfach den Desktop von Win8 analog Win7 aussehen zu lassen und damit für mich optimal. Zum Umstieg wurde ich durch das Sonderangebot von Microsoft (bis 31.01.2013) verführt - preislich einfach unschlagbar und für meinen Office-PC jetzt wieder ein aktueller Betriebssystem-Unterbau.
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Rafa
5.0 out of 5 stars El vendedor y producto reemplazado
Reviewed in Spain on October 16, 2020
Verified Purchase
Memoria defectuosa, el vendedor estupendo, cordial, amable y atento, soluciono los problemas tanto del cambio de la memoria como el reembolso,todo ok y funcionando, un cordial saludo Thomas.
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philzon
5.0 out of 5 stars Aucuns problèmes
Reviewed in France on September 11, 2015
Verified Purchase
Très bien Crucial assure... et pourtant ce n'était pas gagné car c'était pour upgrader un PC qui date de 2009 ! Je sais par expérience que mettre 4 barrettes n'est jamais très sûr et là aucuns problèmes, reconnus immédiatement et PC stable. Bravo
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