A:AnswerThis particular RAM worked on my desktop. I also have 4 slots on my computer but you only need one set (2 slots). Best thing to do is you tube it. They will give step by step instructions on replacing the old RAM.
A:AnswerCheck to see if your system uses low voltage memory.. if it does.. this won’t work.. I have the Dell Inspiron 3650.. had to return this and get 1.35 volt instead of this one that is 1.5v
A:AnswerNo. You want DDR 4 Memory, runnning at least 3200 Mhz. Bestbuy has these https://bit.ly/3g8tsAq that will work well for your build at a reasonable price, and they're even RGB.
A:AnswerAs far as I know, this memory module will not work in a 2009 MacBook Pro. This is a desktop memory module and the 2009 MacBook Pro requires laptop memory. In addition, this is DDR4 and the Macbook Pro for 2009 requires DDR3. Here's hoping this information is useful.