Outlet 1-2: 9V DC, 100mA each
Outlet 3-4: 9/12V DC, 200mA each
Outlet 5-6: 9 and 12/15V DC, 600mA*
Outlet 7-8: 9 and 12V AC, 800mA*
Outlet 9-10: 9 and 12/16V AC, 800mA
* only one of these two sections can be used
You can combine 1+2 and 3+4 in series with their Stack Flex cables for two 18V DC, and combine 7+9 with a custom (? ask TYMC) parallel cable for 9v AC 1.6A for the M9. Just nice!
I doubt there's other power supplies of reasonable size that can power up M9 + other pedals, as their AC outlet will probably have less than 1A, enough for a Whammy. AC10 has two outlets so you can add in parallel to get 1.6A for the M9.