The ViaConnect works for standard 0.1"/2.54mm header vias (about 35mils wide), but what about the other end? To name a few, It can be:

• 24-32 AWG to 32 AWG wire
• A standard Dupont header or socket
• RF connectors such as BNC and SMA with one ViaConnect being the ground
• Banana Jacks or JST connectors for power applications

Here is a picture showing a Dupont header in the back as an example: