8GB G.Skill DDR3 PC3-10666 CL9 SQ Series Dual channel laptop memory kit (2x4GB) by G.Skill

Works out of the box

product one hundred percent corresponds to my expectations

Bought this ram to upgrade a 2011 Mac Book Pro. It works well, and have seen a definite improvement using both FCPX and Motion5 , and some general speed increases.

With Motion 5 , the number of layers you can work with improves a lot, but playback, still relies on the graphics card, so is not greatly improved.

FCPX, was working on something with a lot of keyframing, and the increased ram, means that it is now usable, and not 'paging - out' after about 20 mins use.

so far so good...

I was really pleased with this memory. Cheap and seems to be holding up well after a few months use in my Acer Aspire laptop. I'd definitely recommend this to anyone.

Originally I bought a cheaper kit for my MacBookPro 2009, it kept crashing whenever I played a video fullscreen for more than 5 minutes (Skype, Flash...). The graphic card (GeForce 9400m) using the RAM when displaying those videos thru hardware acceleration.
The RAM kit needed to be "compatible" with the graphic card. GSkill references some of their products on their website, funnily enough the reference is slightly different FA instead of FA. They also allude ot outdated products...
Bottom line: This kit works really well, using it with a MacBookPro 2009 will work (probably not at the frequency announced due to motherboard limitations...).
Putting more than 8Gb is pointless since the motherboard won't support it, unless you have an Intel ix motherboard...

Excellent memory kit at a very good price.
It works perfectly with my MacBook Pro 5.1 (late 2008)
Fast delivery, 5 working days for Greece.

Great performance for a affordable price. Works very well in MacBook Pro 2011!!!

I can't get working with E732GZ laptop.

I've ordered a double kit (16GB) and it works great on my iMac (model 12,1).
The shipping was fast and the service is very good!
I recommend it.

This 8GB kit works fine in my legendarily-finicky MacBook 5,1 (October 2008 aluminium unibody) and my MacBook Pro (mid-2010 Core i5).

For the MB5,1, make sure you're running OS X 10.6.6 or newer (including Lion) and have installed the EFI Update 1.4 from Software Update, otherwise it'll panic and die all over the place. Very important!

As an added bonus, for what it's worth, it actually shows up as 1333MHz DDR3 in the 5,1 rather than the expected 1066. The i5 unit still runs the RAM at 1066-- lamesauce.