Welcome to the forums!
As far as I can tell, your motherboard does have a PCIe slot and can support any current GPU.
A 4350 will work just fine but I would recommend against this upgrade.
The only reason for such an upgrade I can think of is to get better gaming performance.
Neither of those GPUs are any good at gaming.
The MINIMUM upgrade I would recommend would be to a 4650/4670.
Both are massive upgrades from what you are considering and are designed to be extremely low power.
If you decide to look into any faster cards, you will need to post specs on, and probably upgrade, your PSU.