>>2943418
you're talking mechanical vibration/stretch of cables like the copper is going to jostle the electrons more so than the oscillator itself and to a more significant degree than EMI inside a device which has all kinds of other digital and analog circuitry crammed into a tiny box. that's more of a snake oil than anything else.

as a thought experiment, imagine the master clock being placed just outside the audio interface with a few centimeters of coax cable. that wouldn't necessarily be any worse than using the built-in clock of the interface.
>Supports 12 GHz: Belden 4K UHD Coax Cables for 12G-SDI are capable of supporting 12 GHz bandwidth and enable a single-link configuration to transmit 4K
that's more than enough for a fast rise time.