Use this StarTech VGA to HDMI Converter and Scaler to maintain compatibility with legacy video sources. While VGA can be converted to HDMI as-is with an A/D convertor, HDMI displays may not support the resolution of the VGA source. Having a built-in scaler solves the problem of incompatible resolutions.
In addition to scaling, this convertor can also embed separate analogue or digital audio into the outgoing HDMI signal via 3.5mm and optical inputs. Setting up the convertor is simple thanks to OSD menus accessible via button controls.