apologies for wait/bad formatting.

I got the 2021 mech 15 g3

https://www.eluktronics.com/mech15g3-i7h-3080-2ssd-16r/

replacing ram with

https://www.amazon.com/Crucial-2x8GB-Laptop-Memory-CT2K8G4SFRA32A/dp/B07Q7T9NSC/ref=sr_1_1_sspa?crid=6R1NYMGXP6G4&keywords=crucial%2Bsodimm&qid=1649958323&s=electronics&sprefix=crucial%2Bsodimm%2Celectronics%2C118&sr=1-1-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExOTEwSkZTUjFXWVRPJmVuY3J5cHRlZElkPUEwOTI3ODIyMzcySFVVRVJVMDhDNCZlbmNyeXB0ZWRBZElkPUEwOTQ5NjIzNjREN0dHNzRTVVIxJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1

total cost with taxes: $2,290. not bad turn out imo.

The ram you posted looks like 1rx8. The rule of thumb is: if it doesn't explicitly specify dual-rank, it is more than likely single-rank. The same goes for this one from Crucial. The only one I've seen that guarantee dual-rank are the CT2K16G4SFD832A model and Timetec ones.

Confirmed: Crucial Vanilla, 3200 MHz, CL 22, 2x16 GB, model CT2K16G4SFD832A .

tRFC 560, command rate 1T, dual rank.

Laptop: Lenovo Legion 5 15ARH05H, Ryzen 7 4800H

Thanks for the reply. Got it - the two sets im deciding between is:

https://www.newegg.com/team-32gb-260-pin-ddr4-so-dimm/p/N82E16820331504

and one of these - not quite sure what the difference is though?

https://www.amazon.com/Crucial-16GBx2-PC4-25600-Unbuffered-260-Pin/dp/B07Q7T9NSC?th=1

https://www.amazon.com/Crucial-16GBx2-PC4-25600-Unbuffered-260-Pin/dp/B08C4X9VR5?th=1

This is dual rank https://www.amazon.com/Crucial-3200MHz-2933MHz-2666MHz-CT2K16G4SFD832A/dp/B07Q7T9NSC

Thank you! I am a little confused though, so it turns out that HyperX 16GB sticks are dual rank each? I thought they are single rank looking at their two rows of physical NAND modules on one side (e.g. Cruicial Dual vs Single).