It ultimately won't tell me if the cables are actually connected inside but I have two USB testers that can read and print the information on each emark (if it'

It ultimately won't tell me if the cables are actually connected inside but I have two USB testers that can read and print the information on each emark (if it's present) in the cable, which is a pretty useful thing to have when grabbing a mystery usb-c cable. I have the avhzy ct-2 and ct-3 testers, there's a bunch of other distributors of the same thing as well. The FNB48 looks like same board, different programming. I used to be able to recommend the avhzy ones but during the chip shortage they started using some clone chips inside which don't appear to be as accurate.