Vertical mounting GPU without loosing access to PCIe slots

PCIe slots allow your motherboard to connect with your PC's most critical components and provide key functionality

It'll fit in any PCIe x16 slot physically I imagine your card is likely a 3-4 slot cooler Make sure you've removed the rear brackets so that

pcie nvme slot if the slot is open like that, you should be good to go if it's not open, you could a) use another riser to adapt the x8 to x16, or b)

pcie 30 in 40 slot The fourth generation of this interface, PCIe standard, was announced in 2017 However, we did not see SSDs or graphics cards using the new tech until