Ableconn USB3HUBE1 USB 3.0 3-Port HUB and RJ45 Gigabit Ethernet [AX88179 + GL3520 chipset], Include 5V 2.5A Power Adapter and Support BC 1.2 Battery Charging Add a reliable Gagabit wired network interface and 3 USB 3.0 ports for notebooks, ultrabooks, Surface Pro, MacBook, Chromebook, and other portable devices for data hungry applications such as video streaming and data storage. Built with USB-IF certified GL3520 and ASIX AX88179 chipsets which ensures reliable and high performance data connection. It doesn't need to re-plug USB to enable connection again when system reboots. It can be used as bus-powered (powered directly from upstream USB port) or self-powered (a 5V 2.5A power adapter is included). For most applications, the adapter can be just used as bus-powdered without external power adapter. It may need the included power adapter to ensure enough power in situation such as using power hungry USB devices or not enough power provided by USB host ports on some portable computers. Automatic driver installation in Windows 10, 8, 7, Vista, XP. No Drivers installation needed (driver built-in) for Chromebooks, ChormeOS, and Linux kernel 3.9+. Driver installation is required for Mac OS X. The installation is easy and straightforward. Driver download is available for Mac OS X 10.6 and later versions. For Linux, the drivers have built in kernel since kernel 3.9. Driver download for Linux 2.6.25 and later is available for kernel rebuild. A 5V 2.5A power adapter is included for power hungry devices or device charging. The 3 USB Ports are BC 1.2 (USB Battery Charging 1.2 Specification) Compatible.