Hi:
With a 240W P/S, your choices are extremely limited.
I would go with the AMD Radeon HD 6450.
https://www.amazon.com/Asus-PCI-Express-EAH6450-SILENT-1GD3/dp/B004X8EO6Q
That was the optional graphics card offered on the 8200 Elite SFF with the same 240W P/S.
W10 should automatically install the graphics driver.