The M880-PW power supply is designed for current hungry digital modules (+5V/6000mA, +12V/-12V 400mA). The majority of the "state of the art" - power supplies on the market have less current on the 5V line (500mA - 1500mA). Even if you like to connect USB controller/keyboard devices, more current is needed on the 5V line. For modules like the M800 or M700 we need ~ 1.2A for the module itself on the 5V line. On the other side we need a good +12V/-12V supply that fits for the analog stuff as well.
Use the M880-PW and you are on the save side.
The M880-PW needs a power-brick (see below):
INPUT: 15VDC / 50W
OUTPUT: +5V/6000mA +12/-12V 400mA
REGULATION: 1% typical
SHUTDOWN: 115° typical
MINMAL LOAD: +5V /500mA
RANGES: Operating -40° to 75° C
AC-DC power brick to use with the M880-PW
INPUT: 100-240VAC 50/60Hz 1.4A-0.7A
OUTPUT: 15VDC 4.A