4 IEEE 802.3af-compliant PoE and Ethernet combo portsProvides up to 15.4 watts at 48 VDC per PoE portIntelligent power consumption detection, PD failure check, and PoE scheduling function3 combo (10/100/1000BaseT(X) or 100/1000BaseSFP slot) Gigabit ports; 2 ports for redundant ring and 1 port for uplinkTurbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches), RSTP/STP, and MSTP for network redundancySupports MXstudio for easy, visualized industrial network managementV-ON™ ensures millisecond-level multicast data and video network recovery