If you look at the label closely you'll notice that the PSU has 1200 Watts continous power, quite impressive!

Here we see connectors for four peripheral modular cables. These connectors are color coded black. The red connectors on your right are four additional dedicated PCI-Express modular cables, the four 12 volts rails.

The modular cables (can be connected if desired)

2x PCI-E 8pin
2x PCI-E 6pin
4x 6pin device power (12+5+3.3V)

1x 24pin ATX
1x CPU 8pin
1x CPU 4+4pin
1x triple molex 4
1x triple SATA power
2x PCI-E 6pin
1x fan monitor

Also notice the 24 pin mainboard connector which was introduced with PCI-Express compatible mainboards.

The test setup in the batcage.