4 x PoE IEEE 802.3at/af Power-over-Ethernet (PoE+/PoE) ports 4 x Standard 10/100 RJ45 Ports. Total power budget of 40 watts. Supports IEEE 802.3at/af detection and short circuit overload and high-voltage protection. All RJ45 ports with Auto-MDIX (auto uplink) support. IEEE 802.3x flow control for full duplex. Supports up to 4096 MAC address entries