Review on Samsung PC4 21300 2666MHZ SODIMM Laptop Computer Components by Justin Hines

I bought this for my wife's new Acer Aspire 5 (A515-43-R19L) laptop. It's difficult to install memory in this laptop - you have to unscrew 10 screws and carefully but forcefully pry the back panel off the machine. After installing the RAM, I reassembled it and powered on the laptop; it refused to boot. The Acer logo didn't even appear. So, get those 10 screws BACK, pry off the bottom, pop out the new RAM and try again. Without the new RAM it started fine. Before putting it back in, I tried multiple times, removing and reinstalling the RAM. No fun. I sent it back to Revain and ordered the same RAM again. The new RAM works perfectly.