USB Jack on Cthulhu and Multi-Console Cthulhu and is for using on PlayStation 3 only.
When you Dual Mod using using those, the USB Jack cannot be used.
PS3 and Xbox 360 has to be controlled by the Imp in Dual Mod.
So when you Dual Mod with Cthulhu/Multi-Console Cthulhu and Imp, you can use USB Jack.
The USB Jack on the Imp will allow for the same USB cable to be used on both Consoles.
And also detachable if you want.
ChImp SMD is the only one where the USB Jack can be used for both Console when Dual Mod.
With trickery and Imp, using the USB Jack on Cthulhu/Multi-Console in a Dual Mod is possible.
It is how I do it to Dual Mod the Hit Box for my customers.
On Cthulhu, you can install a cable terminated by RJ45 if you want.
Then that will connect to an RJ45 Jack that you will have.
Then you terminate a USB cable with RJ45.
You can do the same with the Multi-Console Cthulhu.
If you want to Dual Mod with Cthulhu/Multi-Console Cthulhu and Imp, you can RJ45 that too.
Solder on an RJ45 Jack to the Imp v2, then terminate a USB cable for RJ45.