A classic SCOM has to remain wired into the vehicle at all times, and that requirement is not just a design choice, it is fundamental to how the device works.
Why It Can't Just Be Unplugged
Since the module continuously feeds a false speed value to the ECU, removing it means the ECU immediately sees the real GPS speed again and the factory limiter reactivates right away.
A One-Time Alternative
The M-JET Speed Limit Remover works differently by changing the setting itself through a one-time activation, so there is nothing left plugged in that needs to keep running continuously.
