The Strymon Ojai Expansion Kit features 5 high-current, fully isolated 9V outputs with centre-negative polarity.Please note: Power adapter not included. Requires existing Strymon power system.What is included? Expansion Kits consist of an isolated power distributor and all of the necessary connection cables to integrate it with your existing Strymon power supply and power up to five additional effects pedals.When should I use an Expansion Kit? Use an Expansion Kit when you need to add more pedals to your Strymon powered pedalboard. Expansion Kits do not come with a power adapter and will operate only when connected to an existing Strymon power product.How many Expansion Kits can I add to my Strymon power system? An Expansion Kit adds 5 additional outputs to your Strymon power distribution system. You can add as many as 6 Expansion Kits to your system, powering up to 30 additional effects pedals, depending on which Zuma or Ojai power supply is connected to the power source and the total