Can I run a graphics adapter in this?

I have a new Mac Pro, but I also like to play games. My old Mac Pro had PCI slots and I could run a decent graphic adapter card in the chassis that made running modern games possible. Can I use this Expansion Chassis to run a modern graphics card?

HighPoint RocketStor 6361A Thunderbolt 2 PCIe Expansion Chassis

HighPoint RocketStor 6361A Thunderbolt 2 PCIe Expansion Chassis

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