1 x 4-pin CPU Fan header; 1 x 4-pin CPU OPT Fan header; 3 x 4-pin Chassis Fan headers; 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector; 2
GA-Z87MX-D3H (rev. 1.x) Overview | Motherboard - GIGABYTE Israel
CPU OPT vs CPU FAN - Which header should you use? - Spacehop