1. Easy to use, plug and play, no configuration required, just plug in the network cable and you can use it. 2. Built-in professional PoE chip automatically identifies PoE access devices. 3. No power supply required, the network port is powered, the wiring is simple and fast, and the power supply is reliable and stable. 4. Two devices can be connected in series with a maximum transmission distance of 250 meters, and less wiring. Support IEEE 802.3/802.3u,IEEE 802.3af/at Support 250M Extend function 2*10/100Mbps self-adaptive RJ45,support(Auto-MDI/MDIX) 1*10/100Mbps self-adaptive RJ45 (Auto-MDI/MDIX) Support 1K MAC address Support EEPROM Support IEEE802.3 af/at All ports supports 2KV Lightning-protection Support 16 VLAN(IEEE Std 802.1q) Support maximum forwarding packet length 2048 bytes Due to different product batches, the appearance may vary, which does not affect the use. Colour:As Shown Material:Plastic Package Contents: 1 * Poe Extender