Tech Help: Is this Video Card compatible with my Asus H81M-D Motherboard?

Anonymer

Sorry, I'm not good at computers. I bought my PC last year and it has a motherboard that's Asus H81M-D.
I plan on buying a GeForce® GTX 1050 D5 2G but I don't know if it is compatible with my motherboard stated above.
I tried contacting the website of Gigabyte but so far no replies.

here are my questions:
1) Is the graphics card compatible with my motherboard?
2) If it is compatible, will i need additional power from the power supply or can i just connect it to the PCI slot?
3) From #2 How do i know if my Power supply can provide enough power to the Graphics card?
4) Do I need additional RAM aside from what was already included in my PC?

I hope you could help me. Thanks in advance

here's the link:
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