This product allows users to connect their computer via USB3.0 to an external monitor. Please note while USB 2.0 will also work however you will be limited to 800x600 resolution. we don't recommend you to buy this product if you don't have USB3.0 Instructions 1: Please install driver which is provided in the USB drive. To install drive please open disk image and double-click on "fresco Logic FL2000 Driver.pkg".