Utilizes the 'DisplayPort Alternate Mode' functionality on compatible USB-C and Thunderbolt 3 systems to provide a VGA graphics output Support for resultions up to 1920x1200 @ 60Hz. Plug and Play; no software installation required. Compatible with Windows, Mac OS X, & Linux on supported systems Requires USB-C port which supports 'DisplayPort Alternate Mode' (not all USB-C ports/systems support Alternate Mode functionlaity). See additional compatibility information below We love our Plugable products, and hope you will too. All of our products are backed with a 1 year limited parts and labor warranty as well as Seattle-based email support