SAMSUNG M471A1K43CB1-CTD 2666MHz Memory Modules (8GB, 1 x 8GB, DDR4, 2666 MHz, 260-Pin SO-DIMM, Black, Green)

worked flawlessly

The listing says that the product is m471a1k43cb1-ctd.

Worked

Fast delivery and easy installation for my new Acer Aspire 5 laptop.

Purchased two Samsung 8GB DDR4s. Great supplement for my recently purchased laptop, Acer Aspire 5 Slim Laptop. Easy to install and get working.

No heatsync

I bought the 8 ram stick to power up my Tuf laptop, the reason is that some games (in this case watchdogs 2) requiere more ram than 8gb to get full 60 FPS. However in the installment part it was somewhat difficult to go in. I put the ram in the slot but my computer was not booting at all. The rgb of the keyboard was red so it gave me a sense of a serious problem. I was concerned thinking that it will damage the system, but I put the ram away and the computer worked normal. So in this case I decided to return it or give another try that risks the computer... However I really wanted the upgrade so I gave it a third try, and it worked finally, with a massive 16gb on total in a $600 laptop, just excellent.

Ram is not expandable. His speed is 3200mhz not 2667mhz. Doesnt asus care?

Am not a gamer so I cant relay any info there, I just bought it to upgrade a new computer. What can I say, it just works!

I matched the single dim module in my gaming laptop, doubling my ram. Its wonderful! Running dual channel at 16gb is great! Diagnostics show this as expected with no issues. My only grip is the packaging. It came in a piece of folded cardboard.