Ubiquiti UniFi Switch Flex Utility - USW-Flex-Utility The USW Flex Utility is a weatherproof outdoor enclosure designed for use with the UniFi Switch Flex, USW-Flex. It includes an Ethernet patch cable and a 60W -PoE adapter that provides a maximum PoE power of 46 W. The USW-Flex Utility can be easily mounted on a mast, offers clean cable management and a screw lock.