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PNY OPTIMA 4GB (2x2GB) Dual Channel Kit DDR2 667 MHz PC2-5300 Desktop DIMM Memory Modules MD4096KD2-667

4.6 out of 5 stars 209 customer reviews
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  • Memory capacity upgrade provides improved system performance and responsiveness
  • Deliver all the productivity your PC has to offer with PNY Memory
  • Compatible with PC2-5300 (667 MHz), PC2-4200 (533 MHz), and PC2-3200 (400 MHz) systems
  • Helps prepare your PC for running Windows Vista
  • Easy installation, Free 24-hour Technical Support, and Lifetime Warranty!
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Technical Details

Capacity: 4 GB
  • Model Number: MD4096KD2-667
  • Item Package Quantity: 1
  • RAM Memory Technology: DDR2
  • Form Factor: Desktop
  • Memory Storage Capacity: 4 GB
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Product Description

Capacity: 4 GB

PNY - Make Life Simple

Upgrade your PC Memory with PNY. Experience improved performance.

Today’s software applications make greater demands on your system’s memory. Take full advantage of your software’s productivity enhancements by upgrading your memory and optimizing the efficiency of your desktop PC, with a PNY memory upgrade. Let’s take a look at why you may need a memory upgrade, and how you can maximize your PC.

Potential Reasons for Needing More Memory

You Just Upgraded Your Operating System: One common reason for requiring additional computer RAM memory is operating system upgrades. For example, if you just upgraded your operating system you will find that Windows 8th or 7th requires more RAM than previous models. As operating systems become more sophisticated they need more memory to do their job. This will take away from the amount of computer RAM memory that is available to your other computer applications. Whenever you upgrade your operating system, it’s a good time to assess your computer’s RAM memory needs.

You’re Getting Your Game On: From the casual gamer needing a simple upgrade or storage solution, to the advanced gamer desiring all the dynamic visual effects of the latest DirectX 10 and DirectX 11 games. With today’s advanced visualizations on many popular PC games you may need to increase the RAM memory on your PC in order to maximize your gaming experience. As the gaming world evolves the more advanced games will put an increased memory demand on your system.

You Upgraded Your Business Software: Upgrades of common business software are another factor that can create a need for more RAM memory. Just as with operating systems, business software gets more complex with each new version/update, and invariably it seems like the computer RAM memory needs an increase. If you’re installing new software on your PC, closely look at its memory requirements, and see if you need to upgrade.

You’re Adding a New Graphics Card: If you are installing a new graphics card in your computer system, you may also need to add additional RAM to your computer. Graphics cards depend heavily on your computer’s main RAM, and if there’s not sufficient memory available the video card is going to have poor performance. To play it safe, your best bet is to reference the manufacturer’s specifications on your new graphics card, and see if you ultimately do need to purchase additional memory.

General Use Upgrade: If you realize that things are just taking too long to complete, or you can actually hear your computer “churning” while it is working on large tasks, this is a sign that it could benefit from more computer memory, and you should upgrade it as soon as possible to improve your computer’s general performance.

PNY Memory

The PNY Advantage

PNY was founded on the memory business in 1985. With almost 30 years of business experience we have been serving consumers, B2Bs, and OEMs worldwide.


Product Information

Capacity:4 GB
Product Dimensions 5 x 1 x 7.1 inches
Item Weight 2.4 ounces
Shipping Weight 2.4 ounces
ASIN B000SSUHO8
Item model number MD4096KD2-667
Customer Reviews
4.6 out of 5 stars 209 customer reviews

4.6 out of 5 stars
Best Sellers Rank #2,027 in Electronics > Computers & Accessories > Computer Components > Memory
Date first available at Amazon.com September 14, 2004

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 4 GB Verified Purchase
I received this today and so far have basically no problems.

Both sticks went in easily and were recognized immediately. I did, however, get a warning message after I installed it that said "your RAM would perform better if both sticks were equal amounts" before Windows booted up. Odd, since both sticks WERE equal amounts, and were installed in slots directly beside each other as recommended.

A bit of research revealed that the problem is with 32bit Windows XP and its inability to read more than 3.23gb of RAM. I am not sure if this means the RAM's dual channels are still taking effect (to make use of the dual channel, you have to install the sticks beside each other in matched pairs). Just thought I'd mention that. It is not a problem with the RAM, but rather a result of a limitation within Windows. If you have 64bit Windows, this might not be an issue.

All in all, a nice, inexpensive kit. There are a lot of people here complaining that their RAM was either partially or totally dead, and I believe them. However, I'd like to point out that before buying this, I did some research into the quality and lifespans of other brands to try to get the best deal, and found the same complaint across the board with pretty much all of the brands I considered before settling on this one. I believe it's a problem of cheap RAM in general. For the price, you're probably going to have the same amount of luck with other brands.

I'll be putting an update here if anything goes wrong with this product in the mean time.

And finally, a word to the wise: your motherboard can only support certain amounts of mhz even if the RAM is the same type your board uses. Some types of RAM run at higher mhz than others and you need to make sure your board supports it before you buy. For the record, the packaging of this kit states that it can be used with 667mhz, 533mhz and 400mhz boards.
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Size: 4 GB Verified Purchase
I was basically experimenting, seeing if I could take a Dell E310 two memory slot machine up to 4GB. I had 2x1GB in it which Dell claims on their site is the maximum, likewise stated on Crucial's website.

With the price of this kit below $40 on Warehouse Deals, I figured I'd give it a shot. Machine BIOS recognized all the memory, unfortunately, the Windows XP only recognized 3GB (known fact that XP will only recognize 3 or 3.5GB maximum physical memory). Not a big deal - 3GB is still more than the 2GB it had been running with previously.
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Size: 4 GB
i'm using this product 2 gig x2 and 1 gig x2 for a total og 6 gig on a Asus M2N-SLI Delux Green nVidia Socket Am2 ATX with AMD Athalon 64x2 6400+ black edition i could have not made a better choice this product is truly top of it's line thanks PNY.
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Size: 4 GB Verified Purchase
Bought this memory for my slow desktop and it is awesome. Just opened the case, popped them in and booted up. It works perfectly and my system screams along with excellent speed. The price was incredible for the excellent quality of this product. Highly recommended!
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Size: 4 GB Verified Purchase
Not much to say about the PNY memory besides it is very good and it was rather cheap which is great since its for an older machine. Ran a memory test (which you should always do with new memory) and it tested out fine. Cheap 4gbs to extend the life of an old pc was well worth a couple dollars
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Size: 4 GB Verified Purchase
This is not the first time I have bought PNY RAM. In fact this is the 4th or 5th time I have purchased PNY RAM. I buy PNY RAM because it is one of the cheapest in the market and it is also one of the best performing RAM companies in the market. When I am building a gaming PC or a high performance PC I usually buy much more expensive high performance RAM, but for normal everyday desktop PCs this is the way to go. I just recently bought a low-end Dell PowerEdge 840 server that does not require that expensive server RAM. It only requires normal 667 mhz PC2-5300 DDR2 DIMMs. It maxes out at 8GB of RAM, so that is what I purchased. This RAM even performs great in a low-end server. It can handle all the common tasks of a normal power user, checking email, surfing the web, and creating documents. It also handles all of the tasks that a low-end server is used for. I use this server as my primary domain controller on my network since domain controllers do not need a lot of resources, 8GB of RAM is overkill, it only uses 1GB of RAM at any given time. It is never too early to plan for the future when it comes to computers and servers. So to sum it all up, PNY RAM works great in my low-end server. It performs just as any other expensive PC RAM would for almost half of the cost of the other RAM out there today. I will definitely buy more of this RAM if I ever need more.
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Size: 4 GB Verified Purchase
Per Dell they state that the maximum ram/memory for the Dimension e310 is 2 GB. I read another review here on amazon where he tried this 2x2GB ram from PNY and it worked. I have 2 e310 and both dated with 1 GB ram, I purchased this ram here 2x2GB and PNY OPTIMA 2GB (2x1GB) Dual Channel Kit DDR2 800 MHz PC2-6400 Desktop DIMM Memory Modules MD2048KD2-800 so I could give both e310's 3GB ram. It works perfect, I had to install the 2GB stick in the top slot & 1GB in bottom. Upon boot up the bios recognized the ram as 3GB, had to hit continue and windows XP boots and see 2.99GB ram. The dell pc's are alive again. I also purchased 1 more item to test and it works perfect to its HIS ATI Radeon HD5450 Silence 1 GB DDR3 VGA/ DVI/ DisplayPort Low Profile PCI-Express Video Card H545H1GD1 this video card also upgraded this pc to Direct X 11 specs and I can now play some games I have owned but never played like Supreme Commander 1 & 2, my son's spore game. This video card plugs into the PCI-E tiny little slot, the packaging even markets that it works in Dell e310, and it does. $69 for the card, $49 for 2x2GB ram, $27 for 2x1GB ram, upgraded both Dells perfect.
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