16 × 100 Mbps PoE ports, and 2 × 1000 Mbps combos. IEEE 802.3at/af standard. IEEE 802.3, IEEE 802.3u and IEEE 802.3x standard. High priority ports. 8-core power supply. Upstream port link aggregation. Up to 250 m transmission distance. 6 KV surge protection PoE ports. PoE power management. 100 Mbps network access.