Caught this a bit late but man, building in the A4-H2O is such a rush! I absolutely love that case choice, it is easily one of the sleekest SFF setups...
TL;DR: Avoid modern "Group Regulated" budget units; they'll literally cook your legacy parts because the 5V rail drops too low under At...
Agree, also love this one.
How to easily replace PS5 Pro SSD?
SAMSUNG 990 EVO Plus SSD.
ASUS ROG Swift OLED PG32UCDP.
At Amazon, when officially released.
1000W PSU is recommended.
Get 7800X3D, a bit expensive than $400.
Try GearInStock: And their Telegram channel: