?Every PoE switch is rigorously tested for reliability, quality, and performance. We supply a year warranty for whole products and lifetime technical support. ?Unmanaged Plug-and-play, easy to use and simple set up with no software or configuration needed. Supports auto MDI/MDIX and Non-Blocking Data Forward. ?4KV lightning design to protect the product and equipment not be damaged even in bad weather. Sturdy Metal Housing supports Desktop or Rack Mount in many different usage scenarios. ?One-Key VLAN mode for enhanced security: The 18-port power over ethernet switch features a One Key VLAN mode that isolates the 1-16 ports from each other while still communicating with the uplink ports, improving network security and bandwidth utilization. ?16 Port Gigabit PoE+ switch, total Max 250W internal power budget, up to 30W per PoE port, add-on 2 gigabit uplink port, IEEE802.3af/at compliant, automatically detects and identifies PD devices.