RemixIconEx.Device.u_disk

You're seeing just the function u_disk, go back to RemixIconEx.Device module for more information.
Link to this function

u_disk(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Device.u_disk()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M19 12H5v8h14v-8zM5 10V2h14v8h1a1 1 0 0 1 1 1v10a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V11a1 1 0 0 1 1-1h1zm2 0h10V4H7v6zm2-4h2v2H9V6zm4 0h2v2h-2V6z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}