Memory upgrade

Yes, Macs are fussy about RAM. Both Crucial and OWC are reliable vendors with high quality RAM. You can use the tool on their site to find the modules that are correct for your Mac.

Macsales is one option.

https://www.macsales.com/

What do you mean by storage memory? Storage refers to space on your hard drive. Memory refers to RAM.

I went with a source that has both. 😎

Glad it's solved.

Sorry db, it happens.

No need. I know. 😎