Yeah I didn't even bother looking up the model. I was just basing the cost of upgrading a desktop off of purchasing a newer video card from AMD or Nvidia (R7 250 / 260, or a GTX 750), and adding a power supply in case the factory power supply only provided an output of 250-300W. Just because the card doesn't require an additional power connector doesn't mean you have enough power to run the card (GTX 750 requires at least 400W PSU, typical OEM power supplies usually hover between 300-350W max). Also, I'm not sure why you would recommend a card that old as an upgrade (HD4650 also even requires a 350W PSU)...Actually video cards that support three monitors are pretty cheap and don't necessarily need extra power. AMD Radeon HD's from the 4000 series and higher with a DisplayPort(convertible to other interfaces with adapters) can support three or monitor monitors.
But in this case that's not a option since this is a Pavilion G4 which is a laptop. The USB solution is the only unless you want the exact duplicate on two of the screens in which case a splitter would also work.
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