Originally Posted By: tfabris
… Related: I recently saw this video which describes one interesting special case where the E-marker chip might cause a problem. The spec doesn't allow for multiple daisy-chained cables to communicate their capabilities downstream, so if you use a USB-C extension cable, the device that's drawing the power might, in some situations, draw more current than the second-in-line cable can handle.
My understanding is that the USB-C specification has no allowance for any form of USB-C to USB-C ‘extension’ cable.

USB-C adapters to/from USB-A are possible, but there are implementation requirements.