My company provided me a Lenovo USB-C dock when I received my Mac Book Pro 2017 model. That dock worked to a certain degree, but I happily replaced it with the Lenovo TB3 dock this week (which basically works much better, not having the quirks of the USB-C dock).
What caught my attention: the TB3 dock comes with a cable that has a "lightning" label (probably to indicate it can transmit power) and a "3" printed on it.
Thing is: the USB-C cable is a bit longer (like 40 cm) whereas the TB3 cable is a bit shorter. So I tried connecting the dock using the longer cable ... and interestingly enough it worked, but one of my two monitors connected to the dock would stay dark.
According to this here, USB-C cables should be "equivalent" (unless getting to long), but I just experienced something else.
Can anyone shed some light on this? Are there physical differences between these cables?