This ethernat adapter designed for the fire tv stick witch supporting connected to the network through mirco USB port.The purpose of faster and more stable internet access. Specification ★Power Supply:5V/1A ~ 5V/2A ★Cable Length:3.3ft ★LAN Speed:10/100Mbps ★USB:Power supply only,don't use for date transafer Follow the usage guide ★Step 1: Plug TV Stick/Chromecast into HDMI port in your TV. ★Step 2: Connect the Micro USB connector into Chromecast/TV Stick,make sure the Micro USB connector is tightly connected with the Chromecast/TV Stick. ★Step 3: Connect Ethernet cable to LAN port. ★Step 4: Plug the USB cable into AC power adapter. ★Step 5: Enjoy! !!Note 1.Only apply for the devece which supporting ethernet through micro USB,like fire stick and chromecast. 2.Do NOT support fire stick gen 1, Roku Express, Fire HD 10 or any other tablet or cellphone. 3.The USB port of this adapter is only for charging not for date transfer. 4.Do not support network with VPN (VPN will make the network speed much slower. What's in Box Ethernet adapter 10/100Mbps * 1