The JUE130 USB 3.0 Gigabit Ethernet Adapter is a simple, one-piece external adapter that plugs into the USB port on your Ultrabook or MacBook. It is the ultimate solution if you do not have an Ethernet port or if you just want to increase your connection speed.
The JDA214 VGA to HDMI video audio adapter allows you to connect the VGA input from your laptop or desktop to the HDMI output of a monitor or projector by converting the VGA video signal from the input device into a HDMI output. With a built-in USB power cable, the device is powered using the USB port on your computer.
The JUA230 USB 2.0 DVI DIisplay Adapter acts as an external graphics card for your MAC or PC. It allows you to add an additional DVI monitor/display through your USB 2.0 port. There's no need to open your computer to add an expensive graphics card. With this adapter you simply load the drivers, plug in the adapter to the USB port, then plug the monitor cable into the adapter and you are ready.