The Cioks 8 Expander can be used as a standalone unit (using a 24V power adaptor), but really shines when used with another power supply - pair it with a DC7 to power up to 15 pedals! You get eight power outlets with switchable voltages so you can switch between 9, 12, 15, and 18-volt output. This means the Cioks 8 Expander can provide enough power for a wide range of pedals, even more power-intensive ones.
There's also a 5V USB outlet so you can use it to charge a mobile device.
For more demanding pedalboards just one power supply might not be enough. The Cioks 8 Expander can connect to a Cioks DC7, or any other power supply with a 24V output, to give you an additional eight power outputs - no need for a second mains adaptor!