Alim 9v head beast, for connecting a large number of pedal thanks to its large capacity you will appreciate the long length of cable that keeps the multi taken behind the amp, for example, and was able to put his pedalbord 4 or 5m.
moreover, it takes up little space on the multi, not a transformer.

The only downside is the price: it's really abuse the 30th when a normal power supply worth three times less, then 10th. only for a length of cable, a small, more ampere qq