What graphics card under 100$ for this build

[Professorwhy]

My build is Acer Desktop Computer ATC-705-UR5A Intel Core i5 4460 (3.2 GHz) 8 GB DDR3 2 TB HDD Windows 10 Home I want to upgrade my graphics card. What's should I get my case is 16.29" x 6.89" x 14.98" and power supply is 300W

 

[Sandstorm3000]

I suggest you add 6$ to your budget and go for this

http://www.superbiiz.com/detail.php?name=AS-750TO2G&c=CJ