I take it you've seen PCIe riser cables like this one: https://www.amazon.com/Zer-one-7-5Inch-Extension-Flexible/dp/B07W4KV8ZK/ https://www.amazon.com/Zer-one-

I take it you've seen PCIe riser cables like this one: https://www.amazon.com/Zer-one-7-5Inch-Extension-Flexible/dp/B07W4KV8ZK/ https://www.amazon.com/Zer-one-7-5Inch-Extension-Flexible/dp... If that sort of thing can work at PCIe rates I don't see any reason why that M.2 card can't. It's a lower bit rate plus theoretically a more resilient encoding for long distance as opposed to PCIe.