The 1 Spot Pro XP8-PS is just like the XP5-PS, except it has 8 outputs instead of 5.  Each output provides 9Vdc of studio-clean power and can handle at least 500mA of current draw per output.  Measuring 133x88x30mm (5.24x3.46x1.18”) and weighing only 459 grams (16.19oz or about 1lb), it can be easily attached to a pedalboard using only Vel-Cro.  Because of its low profile, the XP8 can be mounted under most pedalboards, or be used as a pedal riser on top of a board.  With 2 linked input jacks, you can power a second XP8 or XP5 by simply connecting a DC cable.