Since many laptops & Ultrabooks are not equipped with a Gigabit Ethernet port, the USB3GIG is a valuable add-on, delivering high-speed data transfers via USB (Universal Serial Bus) 3.0. Featuring a Gigabit Ethernet port on one end & a USB (Universal Serial Bus) 3.0 connector, now you can quickly download large files, stream movies, & get work done. Plug the USB3GIG's USB (Universal Serial Bus) 3.0 connector into your laptop & connect Gigabit Ethernet port to an Ethernet cable & router. The adapter's flexible cord makes it easy to connect, even in tight spaces. By adding an Ethernet port to your ultra-slim laptop, notebook, or tablet, the USB (Universal Serial Bus) Ethernet adapter Gigabit USB (Universal Serial Bus) 3.0 provides an alternative to connecting to the Internet via Wi-Fi, which can be spotty & unreliable depending on your location. The adapter is the perfect solution for the business traveler who prefers a secure & fast wired Ethernet connection. Ideal for travel, the USB3GIG features a slim, flexible design that fits easily in a pocket or laptop case. A travel cap keeps it protected when not in use.