Can the hoses and fittings be changed out?

i wouldnt recommend it but yes you can change them as long as you are careful taking them apart and replace the o rings

Is this compatible with socket AM5 processors?

Yes, it's compatiable with the AM5 socket. You can go to the Asus product page and it's listed under compatibility within tech specs.

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ASUS ROG RYUJIN II 360 ARGB All-in-one Liquid CPU Cooler

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