Ergotron Zido® Pole Cart ZD2166CG - This cart provides a strong, single column to support all the accessories you need. Outfit the Zido to hold your monitor, keyboard, and CPU at your preferred height. Or choose Zido when you want to stack lots of equipment and supplies on a small footprint. At 66" (168 cm) high, you have plenty of vertical space. The heavy cast-metal base provides stability, and dual-wheel casters take it all where you want to go.