2.0GB (2048MB) PC5300 DDR2 667MHz SO-DIMM 200 Pin Memory Module

Cheapest Sodimm ram I found on Amazon. And honestly I couldn't ask for anything more. Fast shipping. Nice secure packaging in an anti static bag, sealed. Took literally 2 min to pop out my old ram and put the new ones In. Perfect fit, booted just fine and works like a charm.Doubling my ram and swapping my slow hard drive for a SSD made my 6 year old Mac book pro faster than I could have ever have imagined. Don't give up on your old macs people!

Works great in my acer aspire one d250 running windows 8.1.Faster boot up and smoother operations. I would recomended for the price.only problem: the memory speed is 533mhz, not 667mhz. as advertised.

I purchased this memory for a 24" iMac with a 2.4GHz Intel Core2Duo processor. It worked like a champ!PROs: It worked! Price-point!CONs: This didn't change my rating at all, but I will point out that this memory will come from one of many manufacturers. This could make some people who are brand savvy upset.

I purchased this to max out my old Gateway c-141xl convertible laptop. It is now running with max of 4GB ram thanks to this little module. Shipping was fast and installation took only a couple minutes. Works well with the oem ram that came in my laptop. I would purchase this again.

Seems just fine, no hick-ups or problems installing them in my old iMac.I only gave it 4 stars because it's pretty hard for me to fall in love with a semi conductor chip.

Seems good so far. Not much I can say to elaborate on it, better than my last "Lifetime Warranted" memory that only lasted a year.Update: This RAM failed november 02, 2015. Seller refused to make good on the lifetime warranty and Amazon as well refused to do anything about it.

As your old Mac begins to creep its way to the junk pile, the astute user will take a serious look at the RAM and hard drive. I checked on the Crucial site to determine the right type of memory to use in my Mac, as well as instructions on installing it, and I found the best price for the RAM on Amazon and received it within three days of ordering (no shipping charges thanks to Amazon PRIME). This RAM fits perfectly in my old 2,1 Mac and expands its original 500meg to 4gig. At the same time, I replaced the 80gig hard drive with a 180gig SSD (also bought through Amazon), and now it boots faster and opens applications faster than my grandson's brand new Macbook Pro! What can I say? Great memory, great price, quick delivery. 'Nuf said.

Simple and easy to install. The hardest part was getting the one screw off that holds the cover on. Perfect for 2007 imac 7.1 Intel duo 2.4 20" imac