Check the listing for details. SW5E 5-Port AVB Switch w/PoE. Condition: Open box. Listed at 492.89 USD. The SW5E connectionThis, along with its robust construction, makes the Presonus SW5E an especially good choice for live sound systems. Network Link/Activity indicators help you ensure that network data is flowing properly.PoE: Remote power for networked devicesPower over Ethernet (PoE) is a technology that enables network cables to carry electrical power to compatible devices. With PoE, a single cable delivers both network data, such as digital audio, and electrical power. You can locate a PoE-enabled device anywhere you can run an Ethernet cable because you don’t need a local power source. Four of the SW5E’s five ports can provide PoE, a rare feature in the current generation of AVB switches. The SW5E’s fifth port is non-PoE, which is useful for linking to additional switches to create a.