I bought 5 different DP HDMI cables/adapters (active/passive) and none of them could deliver 60Hz for my AW3821DW monitor (3840x1600) (from my Dell E5300 laptop). The maximum frequency I could get over HDMI 2.0 was 30Hz. When using DisplayPort to DisplayPort I was able to get 60Hz, but I needed this connector for my personal PC which requires 144Hz. This solution works great and I can get the best of both worlds.
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