If you want to be super-productive, the ideal scenario is connecting two or more screens to your desktop or laptop. You can have a spreadsheet open on one screen, edit a document on another, and chat with work colleagues in Skype or Slack on a third. But then you find yourself stuck in a hotel room with just a laptop and you can’t remember how to function with a single display. In order to ease those travel woes we list the best portable monitors you can buy right now for work, play, and general use. Before we get started, you’ll need to understand the difference between USB-C and USB-A connections in terms of video output. Your PC’s USB-C port may support the DisplayPort protocol, which is an alternative to HDMI. That’s not a guarantee, however, as manufacturers may limit USB-C connectivity to power, data, or a combination of both. Check your PC’s specifications before purchasing a USB-C-based portable monitor. If your USB-C port does support the DisplayPort protocol, then you can simply plug a portable monitor into your PC without installing additional software. That’s not the case for USB-A connections, as they do not support video output. To connect your display via USB-A, ...