Unofficial reply to @Roboter Hersteller’s question:
If I remember correctly, V5 has 8 legacy ports compatible with 393s and the old sensors. However, it operates at a lower voltage and therefore 393s will not be as powerful. 393s on a V5 are also not competition legal.
The 8 3-wire “Triports” are fed by a single power supply. It is easy to overload that power supply with multiple 393s. We retrofitted a Cortex clawbot with a V5 brain running the 393 motors and the results were not good. My suggestion, never put a 393 on a V5 brain. Having said that, I did build a V5 robot before the V5 claw came out and powered the old claw assembly through the Triports without any problem, so maybe a single 393 in a low-power situation is OK.