OPTIMAL CONNECTIVITY: The USB 3.0 Ethernet adapter adds an RJ45 port to your USB-enabled computer, delivering a connection to Gigabit Ethernet networks. INTEGRATED USB 3.0 PORT: The Ethernet dongle features an integrated USB 3.0 passthrough port that keeps your USB port available for use with other peripherals. BUILT-IN FEATURES: The USB 3.0 Gigabit Ethernet adapter helps conserve system resources through built-in Checksum, Large Send Offload support and Jumbo Frames, with Crossover Detection & Auto-Correction (Auto MDIX) ensuring a reliable connection. MAXIMUM COMPATIBILITY: USB to RJ45 hub is IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) compatible. PORTABLE DESIGN: The small footprint and lightweight design on the USB 3.0 network LAN adapter enables maximum portability and is powered directly from the USB ports for an easy connection.