1)Plug and play, mini size 2)Special lightningproof chip 3)Compatible with 10BASE-T 4)Compatible with IEEE802.3 ... input four output, could used once plug, simple and reliable, can be easily achieved switch, HUB, Router, ADSL, Network Card. Ethernet ... play, mini sizeSpecial lightningproof chipThe ethernet extender transmission distance can up to 300m.Built-in low radiant and surge-proof power supply ...