The PSU has 2 8pin EPS cables. One is a solid 8 pin and the other is a 4+4 pin. Dual 8 pin EPS connectors aren't particularly rare and have been around for a while, nothing new. Normally only one is needed and the second is used for extra power/stability for overclocking or if there's a particularly high power SKU available for the socket.
The ones labelled P8/P4 are for the EPS/CPU power connectors, under the PCIe 1 and PCIe 2 connectors.