If you want to always display the hardware port names without having to hover them you can add following classes to /usr/share/mod/html/css/dashboard.css and style them to your needs:
.hardware-output:after {
content: attr(title);
display: inline-block;
position: absolute;
top: 0;
left: 110px;
background: rgba(0,0,0,.4);
border-radius: 5px;
color: #888!important;
font-size: 10px!important;
padding: 10px;
text-transform: uppercase;
min-width: 100px;
z-index: 0;
pointer-events: none;
}
.hardware-input:before {
content: attr(title);
display: inline-block;
position: absolute;
top: 0;
right: 110px;
background: rgba(0,0,0,.4);
border-radius: 5px;
color: #888!important;
font-size: 10px!important;
padding: 10px;
text-transform: uppercase;
min-width: 100px;
z-index: 0;
pointer-events: none;
}