Asrock Z170 extreme 6 (not+)

The past few days I bought a motherboard asrock z170 extreme 6 and I noticed that like other cards does not have the power supply that is placed from the power supply to the board and from the board to the HDD hard disk because it happened? I do not want to believe that it does not accept hard drives and only format ssd or m2 but if you only accept that, is there not something for me to use my old HDD? I've really been very busy and for me to use the pc is an important task and I could not because of some difficulties but if someone does me the favor this is armed and everything but only manages to connect the cables that go from the motherboard but the hard drive it does not start ringing or spinning because it does not have a power source and I do not know how to do it if the motherboard does not have those sockets or I do not know where they are ... thanks for your help in case