HP 750W PSU Cap

thingiverse

A protective cover for the HP HSTNS-PL18 power supply unit (PSU). This PSU was initially sold by Banggood with a XT60 connector, although it's unclear if this particular model fits other currently available products from the same vendor. No elaborate attachment is required; simply use double-sided foam tape or hot glue to secure the cover in place. Airflow might be compromised due to the covering, but as I'm not drawing significant current, this isn't a major concern for me.