You’re probably already aware of-or even already using-technology that lets you take advantage of more than one monitor to expand your monitor real estate. Typically, to hook up two or three monitors to a single system, you have to install more than one graphics card and ensure that you have proper cable connectivity-a hassle and an expense. Expanding your IT workspace across several monitors might seem hardly worth the effort. But what if you could do it all with a simple USB cable?

For...