I'm not sure what you mean by "many pins". USB C has 24 pins in it. HDMI has 19 pins, DVI has up to 31, old parallel scsi has a lot, but modern SAS is 31. USB

I'm not sure what you mean by "many pins". USB C has 24 pins in it. HDMI has 19 pins, DVI has up to 31, old parallel scsi has a lot, but modern SAS is 31. USB C seems to be comparable to others that carry similar signaling. If you're looking at a small number of pins for power and bandwidth 10gb poe is 8 pins and the range is much farther than most of these others are rated for.