Customer Reviews: Read 128 more reviews...
 Great in MacBook! July 23, 2010
I used this kit to upgrade my MacBook's (Early 2008 Model) 2GB to 4GB. I just swapped out my old and I was done. MacBook recognized the new memory, and I am now able to have many more applications open at the same time.
Fine product July 17, 2010
I highly suggest you refer to your computer's manual to see what MHz rating you need. The last review posted here said 667MHz was only necessary for older 2007 iMacs. This is not true! I bought an iMac in 2008, and then bought an 800MHz ram upgrade after reading forums, when I should have just read my manual... Supposedly the computers are supposed to recognize 800MHz memory anways, and just run them at 667, but this does not always work. For me only one of them would work in combination with the original 667MHz card that was already in the computer. There are many other folks out there on forums stating they've had the same issue.
just installed the 4g memory May 9, 2010
Kingston Apple 4GB Kit (2x2GB Modules) 667MHz DDR2 SoDimm iMac and Macbook Memory (KTA-MB667K2/4GR)
just installed my imac 20 2.4 core 2 duo, the installation is easy, I followed the instruction below the imac, removed the cover, pulled out the Apple original 1gb memory,then pushed 2gb Kingston in without difficulty,I was able to finished in less than 10 minutes.
The speed is significantly improved after the 4gb kit upgrade. so far I'm happy with this product.
Perfect buy May 2, 2010
I've purchased this memory pack to upgrade my iMac, and it really deserve every penny.
As advertised: works well, great value April 22, 2010
USAGE: I love it when things work as expected, and this does. I bought my early-2008 version of a 15" MacBookPro with 2GB RAM; it has and continues to serve me very well. I don't have Photoshop or Aperture, don't use iMovie or other heavy graphics apps, and don't use my MBP for Windows, but spend most of the day in Microsoft Office for Mac, Apple Mail, iPhoto, many tabs/windows of Safari, iCal, occasionally iTunes for iPhone sync'ing, Time Machine, and iBank. I also use Norton Internet Security for Mac and it appears to use lots of system resources, but I've chosen to accept this for the additional security. In Activity Monitor-System Memory I noticed the Page outs number getting pretty high and wondered if more RAM would help, even though Apple's Snow Leopard does a solid job of memory management. So I took the plunge and replaced the existing Apple 2GB RAM with the Kingston 4GB chips. The actual removal and replacement was all of 4 minutes work, and upon restarting the MacBookPro all of the memory was immediately recognized and validated.
RESULTS: In the month since, Activity Monitor rarely shows any Page outs now, and I typically have 1/2GB "wired," 1GB "Active," 1/2GB "Inactive," and the remaining 2GB free until I do some iPhoto work. Have I seen performance improvement? Er, sort of. Certainly iPhoto, with about 10,000 pictures in one of my libraries, once the application is open, runs very noticeably faster for sorting, creating events/albums, and even editing. The rest of my activities do seem a bit faster though I don't have measurements to prove this. For my uses, I am very satisified with the return on my C-note investment.
SPEED MATCHING: The Kingston and Apple memory upgrade recommendations suggest matching computer speeds with memory speeds so I bought the 667MHz memory. Other reviewers have suggested using faster chips, 800MHz or better, but I chose to go with the advice from the two manufacturers. I don't know if I'm experiencing a speed penalty or avoided an incompatibility, but as I mentioned in the beginning of the review, it all works and works well.
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