The Hikvision DS-3E1528P-EI is a smart managed switch with 24 Gigabit PoE RJ45 ports, 2 Gigabit RJ45 ports and 2 Gigabit SFP fibre ports. It supports IEEE 802.3af and 802.3at PoE at up to 30 W per port within a total PoE budget of 370 W. Ports 1 to 24 support long-range PoE transmission up to 300 m, and PoE Watchdog automatically detects and restarts cameras that stop responding. The switch offers 68 Gbps switching capacity, a 50.59 Mpps forwarding rate and a 16K MAC address table, with 802.1Q VLANs, STP and RSTP loop prevention, QoS and 8 link aggregation groups. It can be managed through the web interface, HikCentral Pro or remotely via Hik-Partner Pro, which displays network topology, PoE usage and alarm status. The metal chassis includes 6 kV surge protection and can be desk mounted or rack mounted with the supplied mounting ears.