inspiron 5680

One more thingy... make sure the dongle supports the optimum ("native") resolution that's recommended for the specific monitor you want to use. So you need to know about the monitor before you purchase a dongle. :Wink:

There's a difference between an add-in video card and onboard Intel video. So are you saying you only have onboard video (eg, one DisplayPort connector) and no add-in video card in a slot? In this case, you can use a USB>{video} dongle for a second monitor, where {video} is a port supported by that second monitor. Look for a dongle that supports USB 3.1>{video} since you have 4 USB 3.1 ports on the back of this model.