I could look at a SCSI device or a SCSI cable with my eyes and see what I was getting into with good-enough detail to understand the playing field I was dealing

I could look at a SCSI device or a SCSI cable with my eyes and see what I was getting into with good-enough detail to understand the playing field I was dealing with today. With USB C, my eyes don't help at all with devices nor with cables. Is it a power input? A power output? Both? Does it support a display? Is it USB 2, 3, or none? I have no direct way of telling -- my eyes don't help, and nor do my other senses.