OPTIMAL CONNECTIVITY: The USB 3.0 to Gigabit Ethernet Adapter adds an RJ45 port to your USB-enabled computer delivering a connection to gigabit ethernet networks BUILT-IN FEATURES: The ethernet USB dongle 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 adapter 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 ethernet adapter enables maximum portability and is powered directly from the USB ports for an easy connection INDUSTRY-LEADING SUPPORT: StarTech.com offers a 2-year warranty and free lifetime technical support on this ethernet adapter