Very important: you probably want to download the OpenSCAD file and change it so it snugly fits the specific cables you use. I often plug and unplug all of my MacBook's cables, because I'm putting it on my desk, or removing it from my desk. This plug combiner allows me to plug and unplug them at once, like a tiny micro-dock. I'm including a commented OpenSCAD file because you'll have to customize the exact measurements for your specific cables. The provided STL file supports a MagSafe 2 Converter, a third-party DisplayPort ot HDMI Converter, an Apple Ethernet Converter, and a USB plug (your USB plug may have different dimensions, though). OpenSCAD file requires http://www.thingiverse.com/thing:8812