Hikvision DS-3E1526P-SI 24 Port Gigabit Smart Managed POE Switch, 24 × gigabit PoE ports, and 2 × gigabit fiber optical ports, PoE Power Budget: 370W, IEEE 802.3at/af standard for PoE ports. Network topology management, alarm push, network health monitor. 6KV surge protection for PoE ports, PoE watchdog to auto detect and restart the cameras that do not respond. Various layer 2 management protocols such as STP/RSTP, VLAN, link aggregation, SNMP, QoS and so on, MAC Address Table: 8K, Switching Capacity: 56Gbps, Packet Forwarding Rate: 41.66Mpps, Internal Cache: 4.1Mbits, 100 to 240 VAC.