I've recently been using really high memory using programs on my laptop, and having quite a small amount of ram my computer started to suffer the consequences. So instead of making an upgrade that would get me buy I bought 2 of these cards and my laptop now has 8gb of ram. I honestly can't express how pleased I am with them. Multi-tasking is not a problem when using large programs and gaming is so incredibly lag free and smooth. If you have a laptop with DDR3 RAM specs and you're looking to upgrade you can't go wrong here!