The power supply includes all the necessary cables. There is no need to purchase more cables It is possible to connect two outputs together to 18v, which I use with my Lehle preamp. Palmer PWT05 MKII is solidly built and a quality product No audible noise from power supplies. I recommend Palmer PWT05 MKII
I needed a smallish power supply for my new pedalboard, but with enough power to plug even more power-hungry pedals. This power supply does the job perfectly. And the price is very reasonable for the quality.
Each port provides enough power (250 mA) to supply a daisy chain with 5-6 pedals. At the moment I am using only one or two output and supply 7-8 pedals easily.
It is built like a tank and it is small enough to be easily fitted under any pedaltrain-type board.
All the cables are included in the box. It would have been awesome if a 3 way daisy chain was included as well, there is only a 6 way that in some cases is a bit too long. Oh well, you can live with it :)