OWC Thunderbolt 4 (USB-C) Cable, 1.0m (OWCCBLTB4C1.0M)

Name: OWC Thunderbolt 4 (USB-C) Cable, 1.0m (OWCCBLTB4C1.0M)
Brand: OWC

This is what matters about OWC Thunderbolt 4 (USB-C) Cable, 1.0m (OWCCBLTB4C1.0M).

About

A 40Gbps Thunderbolt 4/USB4 cable at 1.0m, right at the edge of the passive-signal length where OWC's spec sheet stops explicitly stating passive-vs-active construction.

Confirmed with

Notebook (generic)
Documented as a fix for eGPU instability on a notebook: replacing a generic Thunderbolt cable with a certified OWC one restored sustained speeds above 32 Gbps, eliminating stutter and recovering up to 80 FPS in 1% lows.