Question Is this RAM ECC or non-ECC?

foroomate

Honorable
May 18, 2018
84
4
10,535
I have the following SK Hynix RAM module: HMA81GS6AFR8N-UH. On Sk Hynix it says that it is ECC: HMA81GS6AFR8N : "Supports ECC error correction and detection". But I found another website: HMA81GS6AFR8N-UH 8GB 260Pin SO-DIMM DDR4 saying it is "Non-ECC".
So is it ECC, or Non-ECC?

I need to know because I want to add another 8GB ram stick to my laptop and the one I want to buy is Non-ECC - will I have a problem mixing ECC and Non-ECC in case it is actually ECC?

Thanks!