FIELD GUIDESource-led reference

Source S444 · recorded inspection

VL153 electronic marker: passive-cable application

VIA Labs

Scope and location

A manufacturer counterexample to equating an electronic marker with signal-conditioning-active cable construction.

Description and Applications: electronic marker optimized for passive USB Type-C cables and supporting passive Thunderbolt 3/4 cables.

Open the original source

Inspected
2026-10-08
Access
public page

Recorded AI-assisted source inspection; not independent human approval or hardware testing.

No claim that this chip is installed in any Apple or StarTech cable. No chip diagram, pinout, protection advice or assembly certification is reproduced.

Source inspection is separate from independent technical approval, rights clearance and hardware testing.