1,5 ports POE switch 2, IEEE802.3af 3,auto- MDI/MDIX 4,PAYPAL payment ... FUJA-NETSWITCH-PSE-4PORT is 10/100M Auto-Negotiation POE switch. With 5 RJ45 ports. (1 port for UP-LINK, 4 ... PINS are negative)UP-LINK portThe 5th portLED indicatorPower indicator,breakdown indicator,ACTIVE indicator,PSE indicatortransmissionStore and forwardingMAC address auto-learningAuto-learning, auto ...