Case clearance first
Card size is a real constraint in Korean builds
A lot of the cases selling in Korea are compact, and a 300mm triple-fan card does not fit all of them. The MSI RTX 5060 Ti VENTUS 2X PLUS OC is the example we point to: a dual-fan, compact AIB partner card built for exactly this.
Measure the clearance inside your case before anything else. Card length, then slot width, then power connectors. If you bring the case model, we can check it against the cards on the shelf while you wait.
Step one
Card length in mm
Step two
Slot width
Step three
Power connectors