1 x 8-pin ATX 12V motherboard power socket. ATX; 12" x 9.6" (30.5cm x 24.4cm). 6 x USB 2.0 ports (2 on rear panel, black, 4 on center of motherboard). 1 x 24-pin EATX motherboard power socket. 8 x USB 3.1 Gen 1 ports (4 on rear panel, blue, 4 on center of motherboard).