CPU/GPU is a good combination.No operating system required???
What does that mean?
Do you need to supply your own, or are they installing windows 10?
Corsair VS is a very poor quality psu. tier 5/6 on this list:
Credit to @Starelementpokeand @Energycore for helping out with this long-awaited refresh of the old PSU tier list by Aniallation (who previously went several months without logging in), leaving the old list in need of help. This is simply an update of the list that was flawed in creation by the P...
linustechtips.com
and 350w may not be enough for a GTX1650
Better to buy a quality unit of 550w to provide for a future graphics card upgrade.
Seasonic is always safe.
1one stick of ram will operate is slower single channel mode.
Buy 2 x 4gb or 2 x 8gb. Ram is cheap enough, go for 16gb.
Do not count on adding ram later; Mixed ram does not always work.
Do not pay extra for the cooler.
I5-8400 does not need anything more than the supplied stock intel cooler.
If anything, buy a tower type air cooler like the hyper212.
It will cool just as well and will not risk leaking.