Kingston 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 533 (PC2 4200) Dual Channel Kit Desktop Memory Model KVR533D2N4K2/4G

Pros: Worked right out the box until it stoped & made my cpu crashed :(

Cons: didnt last about 2 months hen i had it!

Pros: If your looking to put memory in a 2 to 3 year old pc, this is perfect. Great price and the performance increase was worth the price.

Cons: None so far, installed good, works great.

Pros: Its 4 gigs ram, fairly cheap and DDR2.

Cons: nothing really

Overall Review: Does exactly what it's supposed to

Pros: Great memory for PC. Running smooth on my PC.

Cons: none

Pros: Of course easy to install, no problems, and computer is faster in response.

Cons: The only con on trying to use more memory is that if you are running a 32 bit version of windows (including windows 7), it will only use 3.5 gb of that memory. You need to run the 64 bit version of windows to utilize the rest, but not all programs are compatible with the 64 bit versions.

Pros: 1 day shipping was great, I ordered it on Thursday got it Friday morning. Easy to install, no damage, works great. Thanks!!!!

Cons: There are no cons yet, everything working great.

Pros: Both sticks recognized from the get go and brought new life to a 3.0 GHz P4 630 machine. The Intel Mobo called for pc2 4300; which I believe is pretty much the same as the 4200. Kingston is my ram of choice when working on older machines because it just works. This has been no exception.

Cons: None

Overall Review: I got lucky on this one; I forgot to check board compatibility as to whether I needed 4 x 1 GB or could get away with 2 x 2 GB; the 2 x2 worked fine. Working on a tower that the customer had built by a reputable builder is sooo much easier than most of the large corp. proprietary cases and components!

Pros: Works to expectations right out of the box; no tweaks needed for older desktop with standard settings (no OC'ing). Shipping was negligible, and order came in ahead of tracking schedule. Upgraded from 512 MB of memory to the board maximum of 4 GB and really gave life to the machine.

Cons: DDR2 is getting more scarce so pricing reflects the limited inventories when compared to current distribution memory sticks.

Overall Review: The entire 4 GB is not usuable with WinXP 32 bit and to benefit fully from this kit requires an upgrade to the OS. I think it's better to have a matched set of memory even though Xp only recognizes 3.5 GB of 4 GB kit. The alternative configuration of 3 GB in two slots was actualy more expensive than the 4 GB kit and since I don't plan to upgrade to a 64 bit OS on that machine, the concession wasn't actually a concession. This memory works as described, nothing fancy...exactly what I expected.