Adds a high-speed Gigabit network connection & 3 USB 3.0 ports for notebooks, 2-in-1s, Ultrabook(TM), Surface(R), MacBook(R) & Chromebook(TM) devices; 3 SuperSpeed USB 3.0 hub ports support speeds of up to 5Gbps; Gigabit Ethernet port (RJ45) supports up to 2Gbps full-duplex transfer speed; Replaces a malfunctioning internal Gigabit Ethernet RJ45 port on a notebok & provides additional USB 3.0 ports for USB peripherals; Energy-saving Energy Efficient Ethernet (IEEE 802.3az) technology; Works with Ultrabook(TM), notebooks & PCs running Windows(R) 7/8/8.1/10; Compatible with MacBook(R) (driver download available); Provides legacy support for devices running Windows XP(R) & Vista(R); One 1000Base-T RJ45 Gigabit Ethernet port with Auto MDI-X (auto uplink) support; Supports jumbo frames up to 4KB; Wake-On-LAN (WOL) support; Compliant with the USB 3.0 specification & backward compatible with USB 2.0 & USB 1.1 devices; 3-year warranty;