VOF-C 15W-65W Chassis-Mount AC-DC Power Supplies CUI Inc VOF-C 15W to 65W Chassis-Mount AC-DC Power Supplies are open-frame power supplies featuring a universal input voltage range of 85VAC to 264VAC. These devices have a standard chassis-mount footprint and provide Class B electromagnetic interference (EMI) / electromagnetic compatibility (EMC) performance. CUI Inc VOF-C Chassis-Mount AC-DC Power Supplies are IEC / EN / UL 62368-1 safety certified, and some models also meet IEC / EN / UL 60335 requirements for household applications.