Real Echo: Using upgraded Realtek technology, it supports power management, automatic sleep and remote wake-up operation. When devices are in rest state, it’ll decrease the energy exhausting automatically and is of low power consumption. We provide 12 month warranty for all T-Sound products you purchase. Buy with confidence. Plug and Play: This Ethernet to USB adapter is plug and play and no need for external power. Also no drive is required if the system is Win 8.1 and Mac Os 10.9 or above. It supports Win 8, Win 8.1, Win10 32/64 bits, Mac OS, Windows 2003-Win 7 32/64 bits, Mac OS 10.9 or below. For other systems it will automatically mount the drive easily. It also supports Android and Linux with support frpm your Android/Linux devices. Universal: T-Sound USB to Ethernet Adapter is from USB 3.0 to Ethernet for Macbook, Surface, Matebook, Dell, Hp, Xiaomi MI box, Smart TV with USB Ethernet input or other laptops with broken Ethernet. Reliable Stable: This Ethernet adapter provides fast, stable wired LAN network than WiFi for laptops without wired Ethernet. It works great for for large file transfer, video and gaming. SuperSpeed: With high performance gigabit IC and USB 3.0 port, this USB to Ethernet adapter is twice the speed up to 1000MB and half the time of megabit. It’s also compatible with USB 2.0 where 100MB still used.