? FANLESS METAL DESIGNFanless design ensures quiet operation and metal casing extraordinary heat dissipation.? LIGHTNING PROTECTION 5 port gigabit switch supports 6kV lightning protection for all ports ensuring its stable operation during thunderstorms.? MOUNTING OPTIONS4 port ethernet switch could be mounted on the desktop or on the wall according to your preference.? LIMITED LIFETIME PROTECTIONTenda network switches provide an industry-leading 3-year warranty and unlimited 24/7 technical support for FREE.? WHAT YOU GET TEF1005D Switch; Power Adapter (5V 0.6A ); Quick Installation Guide.