There's a new version of the Power Box with 5 independent galvanic isolated modules. Each one of them gives you 2 outputs. In this case output 1 and 2 share the same ground, output 3 and 4 also share the same ground, but output 2 and 3 are galvanic isolated.
The last outputs are for 12VDC and 18VDC pedals. I can preconfigure outputs before shipping: for example for 10 outputs with 9 VDC, or 10x12VDC etc.
The price of this device is 150 euro with free shipping to Europe.