Dual monitor is a must have on a laptop, however, the build quality of a Side Track is poor. The monitor sags down when full extended and the slide mechanism has no inner workings and takes a bit of manhandling to extend, then sags at end of track. USB chord, I received one with the monitor and it is about a foot too long and if bumped, the monitor and laptop glitch every 6 seconds or so after bumping and a restart is needed. Having a dual monitor whether duct taped to your laptop or the magnetic version helps working efficiencies no doubt, however, I would seek another brand with a more stable mounting and sliding mechanism if I had not purchased a Side Track.