Overview 7System boardNote See Front view or Rear view for additional component descriptions.1 4-pin power connector2 Microprocessor fan connector3 Auxiliary fan connector 24 Internal speaker connector5 10-pin power connector6 SATA power connectors (2)7 SATA 3.0 connectors (3)8 Auxiliary fan connector 19 M.2 storage drive slot10 Power button board connector11 Illuminated red dot connector12 Thermal sensor connector13 Front USB 2.0 connector 214 Front USB 2.0 connector 115 Parallel connector