List of ports in D2H HD set top box is
1. LNBF/IN Cable input (signal input port)
2. AV Output
3. S/PDIF Output
4. HDMI Output
5. Satellite Card slot
6. 12V DC Input for power supply
There is also a USB slot in the side but a note in the user guide says "USB Based Functions/Applications will be enabled in subsequent software upgrades"
Hope that helps,
Arun