✓?WHAT YOU GET?TEG1105PD Switch; Quick Installation Guide. ✓?LIMITED LIFETIME PROTECTION?Tenda network switches provide an industry-leading 3-year warranty and unlimited 24/7 technical support for FREE. ✓?LIGHTNING PROTECTION?The 4 port poe switch provides 6kV lightning protection for all ports,ensuring its stable operation during thunderstorms. ✓?FANLESS METAL DESIGN?Fanless design ensures quiet operation, and metal cg, extraordinary heat dissipation. ✓?PLUG AND PLAY?Quick and easy setup, no additional configuration or software needed for this poe switch 4 port. ✓?POWER ADAPTER-FREE?No power cord in the package, no power cord jack on the device--powered directly through the network cable. ✓?POE EXTENSION?Extend the distance between PSE and PD from 100m to 200m for Gigabit network connectivity to remote areas. ✓?PORT CONFIGURATION?5 port poe switch provides 1 Gigabit PoE IN port (Port 5) compliant with IEEE 802.3af/at and 4 Gigabit PoE OUT ports (Ports 1-4) compliant with IEEE 802.3af, with a total PoE output power of up to 30W. ✓?POE PASSTHROUGH?Gigabit poe switch can be powered by a PoE switch or PoE injector without the need for extra cables and power supplies, while delivering PoE to other devices such as IP phones or wireless APs.