Intelligent PoE PD Alive(PoE Watchdog) Long Distance PoE Transmission Smooth Transmission Wide Working Temperature (14°F to 131°F) Port Isolation The switch has 16 PoE ports for cameras and two ethernet ports.
Intelligent PoE
Intelligent PoE monitors the power consumption of connected devices, and in the event of large power fluctuations the switch shuts down one port at a time rather than shutting down all ports.
PoE Watchdog 
The switch automatically monitors each port for an active connection with the associated camera. If the switch detects a camera failure it powers off then restarts the PoE connection.
Durable Design
The switch is designed to operate in severe environments and in temperatures ranging from 14 to 131°F. The switch also includes a professional-grade surge protection circuit that offers 4kV (common mode) and 2kV (differential mode) all-port surge protection that helps to reduce damage to the network from lightning storms.