8GB Kit (4GBx2), 204-pin SODIMM, DDR3 PC3-12800,

Originally, I didn't think my RAM could be upgraded, I have a 15" mid-2012 MacBook Pro with 4GB. I read some of the reviews from others who have this model and even though the Apple website says it only holds 8GB, apparently people have been successful with 2 8GB sticks. I don't use my laptop for gaming, but I use fairly large programs to build websites, and just a lot of general multitasking, so I opted for getting 2 sticks of 4GB (so 8GB total). It was easy to install, I watched a YouTube video for my specific model. I did have to purchase a Phillips head #00 screwdriver from the hardware store, it was $5. Make sure you put the screws into a little bowl or something because the top right 3 are longer but the others are the smallest screws I have ever seen. When I first turned on my computer again, only one RAM stick was reading, the other said "empty". I switched them out again, putting the top stick on the bottom and the one I had on the bottom, I put on the top just to make sure it wasn't the RAM itself. It wasn't, I was an idiot and didn't have it in right I guess. Second time booting up, I went to About this Mac and Memory, it was reading correctly at 8GB total. The first thing I noticed was that when I switched user accounts, it loaded right away, as before it would take a good minute or more to switch over to the other user's log in screen. Also, my iMessages app would take ages to start and load messages, it worked almost instantly. My MacBook is running really fast as compared to before, so I am very happy with this purchase! I can't speak to using a total of 16GB of RAM because I didn't install that, BUT from other reviews I definitely think that it's fine with this particular model. Here I was looking at buying a new MacBook Pro, I just saved myself literally $1000 lol! This brought some new life back into my computer, so if you're looking for speed and loaded apps/multitasking it's totally worth it, I definitely think I have myself a couple more years on this bad boy.

This kit worked great with my Mid-2012 MacBook Pro 15''. To start off, I'm not a gamer. I don't do heavy computing and I'm not a big computer nerd. I use my computer for everyday things - surfing the internet, writing, using my calendar, communicating with friends, Excel/Word/Powerpoint, music & sampling, along with some designing (with Photoshop & Illustrator). Before I bought this, my computer was abnormally slow even though only half of my hard drive was full (it was slow to wake up, it took a while for apps to load, and there was always a lag when I switched apps). As soon as I switched my memory from 4GB to 8GB, it made a tremendous difference. All my apps run fast, I never have to reboot my computer (although I still do periodically) and everything feels like when I first got my MacBook. If you're on the fence of buying this, stop. Do your research and figure out if you really need this, otherwise you'll just waste your time, money, and energy. Use the Utilities found on your computer and specifically, "Activity Monitor" to determine how much memory your computer is using. I was pushing 3.99GB when I had 4GB available - that was problem #1. Oh, and if your computer is old, changing your memory is pointless. Just get a new computer. If you're looking to make your computer start faster, the problem isn't your memory (most likely). The problem is your hard drive - so you need to get a faster and bigger hard drive if your computer is too slow to boot up. And lastly, switching memory isn't the magic cure to making your computer run incredibly fast. You still need to take care of your computer - that means, periodic cleaning of your files, cache, and junk. Turning it on and off every now and then, and making sure you back up your files. You really only need to make a memory switch if 1) your apps are slow to load and it takes a while for you to switch from a program like Microsoft Word to Chrome. 2) When you wake your computer, it takes a solid 20-30 seconds before you can do anything. 3) Your Activity Monitor shows that you're pushing the limits for your memory. If you meet all of those qualifications, then get this! If not, figure out what you need by doing a Google search.

This brand that designed this ram in awesome! It can be a bit costly but the ram has great performance, great speed and the ability to process multiple things within a app or over several apps is great. I've compared this brand 8gb to another brand of 16 gb and even at a smaller gb this brand out performed the 16gb. recommend this for those who use light to moderate weight software and app. If you use heavy apps then go for the 16gb of this brand. A key thing I look for to determine if i need to upgrade ram is when i am using my laptop (with proper ventilation) and it is showing a pattern running hot within certain software causing the software and the laptop to lag, move slow and/or freeze. A time here and there is no big thing but when this becomes the norm and the frequency of the laptop running hot while in the software has increased then it is time to upgrade ram. Since upgrading my ram to this brand and gb my laptop has not ran hot. I use this ram on my mid 2012 MacBook pro for light to moderate weighed software and basic every day use.

Es una RAM muy eficaz y sencilla de instalar. El único inconveniente es que sólo por el hecho de ser compatible con Mac aumenta el precio en comparación con otras opciones.

Cant really sale anything bad about this. does the job. bought for my Lenovo T420 and X220. Fits right in and does the job. RAM prices have gone down within the last 2 years. 2x4GB for 60$ is a fairly good price. 40$ would be a better price. Would buy again. Crucial is a very trusted brand. Especially in the SSD area. Cant really say much else. Performance seems good.

Bon produit qualité au rendez vous :)

Before this upgrade, it was depressing to read 'this iMac is too slo to run this song file" for Reason 9 DAW Maybe I should have gone to 32 Gb RAM, but RAM for 2015 iMac is like gold dust due COVID pandemic ; I had to send to New York, and FedEx are expensive, and then stung for import Tax into EU,ouch! None of this is the fault of Crucial, the company has just made my life easier, thanks! kisses, love to Crucial

been using it for a week now, have to say the increase in performance from 4 gb ram is definitely noticeable. Big apps like iTunes and Dota no longer crash when I try to close them, and the overall snappiness and responsiveness of the macbook pro md101 has increased! didn't go for 16gb cause 8gb is the max apple suggests for this model, even though 16gb has been widely reported as being fine, i went with 8 to be on the safe side plus i dont think 16 over 8 will make any noticeable difference to the ordinary user. the mac currently uses about 5.5-6.5 gb ram with latest OS el cap, and all my apps open. apple has even upgraded the macbook air 13 with 8gb ram cause they know thats what el cap and todays apps need. so unless youre only going to use email and chrome and are buying the MBP mid 2012 md101 i recommend buying this right of the bat with the md101,considering changing ram doesnt even void your 1 year warranty just remember to keep the old ram in case you run into any other warranty related problems, as they may refuse service with the new ram in the machine,swap it out then take it to apple. also when upgrading ram,IT IS NOT NECESSARY TO REMOVE THE BATTERY CONNECTOR apple doesnt recommend it.here is the link for ram change instructions. [...] people have reported facing issues dude to removing battery connector. almost forgot to thank amazon for a prompt fuss-free delivery as usual and great packing!