[Stable & Fast Network Adapter] The 3-Port USB 3.0 Hub to Adapter contains three USB 3.0 ports and one RJ-45 port. USB 3.0 Network Adapter connects your computer or tablet to a router,modem or network switch for network connection. [Instant Network Expansion] It is a perfect accessory for adding a standard RJ45 port to your Ultrabook, notebook, Macbook Air, iMac. Excellent Standby for Macbook without ethernet socket when wireless fails. [5Gbps Super Speed] Built-in RTL8153 LAN Chipset, RJ45 Gigabit Ethernet port gives access to super speed 1000Mbps, also backwards compatible with 10/100M Ethernet. USB 3.0 to Ethernet adapter helps you to connect up to 3 USB A devices to your PC or laptop, such as USB Flash Drive, hard drive, mouse, keyboard, USB headphone, speakers etc. [Multiple Compatibility]3 USB Ports Hub with RJ45 support hot swap, Plug and play, does not require external drivers. Compatible with Linux, Mac, Windows. [Sleek and Portable] Made of premium aluminum alloy shell.