For Unibody MacBooks, MacBook Pro w black keyboards, 21.5in and 27in iMac
Some computers require RAM chips to be installed in sets. This is typically because the computer designers are speeding up the memory bandwidth by dividing the data across more than one chip; i.e. You can get twice the bandwidth if half the data is on one chip and half on the other.
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It was to install, and it made the computer much faster. Also, the 10 year warranty is nice, so I don't have to worry about if the RAM failed for any reason.
Very quick installation! Made my computer loads faster! Extremely satisfied!
Installed on a late 2009 iMac. Fairly simple installation, after looking up instructions on Apple.com. Went from 8GB to 16GB...it really makes a difference. Thanks to Jim for all of his great help, and the extra small doggies. My whole office runs on Apple. I recommend Small Dog to everyone.
I add this to the used MacBook Pro I purchased from Small Dog. Great upgrade. Small Dog with install working flawlessly.
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