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There's some magnetic USB-c adapters you can get on Amazon. They kinda look like pogo pins

I was under the impression these only work for usb c power distribution; do they also work for data, display, etc?

Yes. Some have only 2 leads, but the newer ones have all of them.

Any recommendations for a good one? I know the Type C market is rife with poor quality stuff.

Knaive KD3 [1] has worked well with my MacbookPro. It supports 100watts of USB-PD and USB 3.1 (10gbit). I've had no problems doing 87watts, 1080p @ 60hz HDMI and ethernet/USB over a single cable.

USB 3.1 only has bandwidth for 4K @ 60hz w/o USB; so with non-thunderbolt cables (like these magnetic adaptors) it's either Power+4K@60Hz or Power+USB+4K@30Hz.

[1]: https://amzn.to/38ZXPVa

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