1 x AAFP connector,4 x Chassis Fan connector(s) (4 x 4-pin),1 x EPU switch(es),1 x CPU fan with PWM control,1 x DRCT header(s),1 x 6-pin EATX 12V_1 Power connector(s),1 x 8-pin EATX 12V Power connector,1 x MemOK! button(s),2 x M.2 Socket 3,1 x System panel(s) (Q-Connector),1 x AAFP connector,1 x USB 3.1 Gen 1(up to 5Gbps) connector(s) support(s) additional 2 USB 3.1 Gen 1 port(s),2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s),1 x COM port(s) connector(s),8 x SATA 6Gb/s connector(s),1 x CPU OPT Fan connector(s) (1 x 4-pin),1 x S/PDIF out header(s),1 x 24-pin EATX Power connector(s),1 x Power-on button(s),1 x 14-1 pin TPM connector