Honestly, be really careful with those heavy 40-series cards. I remember when I first swapped my rig into a similar setup with a huge triple-fan card... everything looked great for a week until I noticed the entire bracket was slightly sagging under the weight. The 4080 Super is a brick, basically. If the mount isnt sturdy enough, you risk putting unnecessary stress on the PCIe slot or the riser connector itself. I actually switched to a more robust setup because I was terrified of signal degradation on the PCIe 4.0 link. Even a tiny bit of interference from a poorly shielded cable can cause random driver timeouts or stuttering in high-bandwidth games. Quick tip for your build: measure the gap between your fans and the glass twice. If you have less than 40mm of clearance, your card will definitely run 5-8 degrees hotter.

• Make sure the bracket has extra support pillars for the weight.
• Check if the riser cable is actually Gen4 certified with high-density shielding.
• Try to find a mount that allows for some lateral movement away from the glass. Since you have $60, you might want to look at the EZDIY-FAB Vertical PCIe 4.0 GPU Mount Multi-Angle instead. It allows you to tilt the card slightly inward, which helps tremendously with both the sag and the airflow since the fans arent pointing directly at the panel. Just be careful with the clearance near the CPU cooler if youre using a big air tower tho.

I went through this exact struggle when I built my last rig with a beefy 30-series card. Originally used a cheap bracket that pushed the fans right against the side panel and temps were a nightmare... saw like a 10 degree jump immediately. In a case as wide as your G500A tho, you have way more breathing room than the older mid-towers. Those newer kits like the Cooler Master Universal Vertical GPU Holder Kit V3 PCIe 4.0 are a massive improvement because they let you slide the card toward the motherboard.

• CM V3 is the winner for me because of that sliding mechanism. It helps avoid the glass choke.
• Official Phanteks Vertical GPU Bracket Gen4 PCIe 4.0 looks cleaner but is more fixed in place.
• Airflow is fine as long as you have at least 2 inches of clearance from the side. If you are worried about the weight of a 4080 Super, the CM one feels a bit more solid. Honestly, go for it. The aesthetic boost is worth the tiny temp trade-off.