To increase the voltage, use the DC1-48 90/0 SER and connect two outputs from your power supply. Two 9V outputs in SERIAL will provide 18V. Two 12V outputs in SERIAL will provide 24V, and so on. The total voltage will be the voltage from both outputs added together. 2.1 mm plugs. 48 cm cable.
IMPORTANT! Requires a power supply with isolated, floating outputs.
DC1-48 90/0 SER, Serial DC Cable RED