Practically every new power supply is compatible. The Z97 has an 8 pin connector, if you search for a power supply here you will find "4+4 pin 12V", which is the power connector for the processor. Some new power supplies also have 8 pin EPS, but there is no difference if 4+4 or 8 pin. Only old power supplies still have 4 pin 12V connections, the mentioned adapter can help, but it can also lead to problems with some processors.