I bought two of these: https://www.amazon.com/gp/product/B08F7K215V/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

and so far so good. I have good quality DP cables plugged into them, no flickering or issues. It is a TIGHT fit, and I do have 1inch feet added to my case, but they work and are seemingly good quality. I have 2x 1080p 240hz monitors plugged in for 2~weeks now with no issues of flickering etc.

Happy to send pics over in a bit if you want to see the tight/clearance, but yeah they work!