The prosafe 8 port switch fs108p can supply both data and electricity at the same time over a cat 5e cable using power over ethernet poe technology 4 of the 8 ports can additionally provide a supply voltage for end devices using standards based ieee 8023af power over ethernet expanded auto sensing algorithms gives you security that is provided with power only with 8023af terminalswhich prevents damages at devices without poe support poe simplifies and optimizes the network installation