This widget is for displaying static images. You can upload an image of max. size 5 MB. Just as for all the other widgets you can define a dashboard link or external link for this widget.
Supported data types are .tiff, .pjp, .pjpeg, .jfif, .tif, .gif, .svg, .bmp, .png, .jpeg, .svgz, .jpg, .webp, .ico, .xbm, .dib.