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Sebastian Krzyszkowiak

TIL: It's surprisingly hard to design a board for such a simple schematic that will be cheap to manufacture 😫

Electronic schematic showing a fully featured USB-C receptacle being connected to a fully featured USB-C plug, with a sole exception of SBU1 and SBU2 signals that are instead routed to pin connectors.
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Sebastian Krzyszkowiak

...but not impossible 😁 Being able to order a 6-layer PCB with capped vias for $2 is crazy. It even appears to work with Thunderbolt and DisplayPort, which is surprising, as I barely knew what I was doing 😂 #kicad #shotonlibrem5

Five smol PCBs called "SBUB", each with a USB-C socket on one side and USB-C plug on the other one. Silkscreen reads also "Holy Pangolin Electronics" and "by dos".
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Sebastian Krzyszkowiak

@___warhier I needed something to block SBU signals from passing to the other side. Breaking SBU out is useful too, so did that as well. I didn't really need SuperSpeed pairs to be connected, but did it anyway as a learning exercise.

This in fact breaks TB and DP as both of them use SBU (USB 3 does not), so I connected it back with jumper wires to test it out, out of pure curiosity to find out whether I got it right enough 😜

SBUB board connected to a laptop's USB-C port, with both broken out SBU sides connected back together with loose jumper wires.
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