Question What Ram Do I Use and are two identical stick same as kit?

[fedefrasis]

Hello
Hi, im bulding this system ina few days (only the case is left to ship)
Ryzen 9800X3D
Asus X870E-E Gaming WiFi
RTX 5080

I originally bought 64gb ddr5 rams CMK64GX5M2B6000Z30 by Corsair

Problem is, QVL for motherboard lists a close CMK64GX5M2B6000Z28(Ver 5.43.01) but not mine which is the z30 / cl30
Is this due to them not testing every variant and mine will work or do i specifically needed to have bought that SKU z28?

there is a z30 corsair 2x32 6000 listed but its a different kind of ram with rgb and higher heatsinks

So then i bought these XPG rams ax5u6000c3032gslabrbk from adata. As far as i can tell they are IDENTICAL to the black ones nonrgb (they didnt have non rgb, i hate rgb) which are in the qvl

Is there any difference between a prebought kit and two identical stick bought separately?
Is there any quality difference? Which do i use? Thanks!

 

[dwd999]

Most memory manufacturers say that only prebought kits should be used. So don't be surprise if two sticks bought separately don't work.

 

[fedefrasis]

Most memory manufacturers say that only prebought kits should be used. So don't be surprise if two sticks bought separately don't work.

so which do i use

 

[dwd999]

so which do i use

If you have them already you can try them but don't be surprised if the don't work. If they do work, fine. If they don't work then return them and buy a manufacturer certified matching set.