1 x 24-pin ATX Power Supply Connector 1 x 4-pin ATX Power Supply Connector 2 x USB 2.0 headers support additional 4 USB ports 1 x CPU_Fan Connector(4 pins smart fan) 1 x SYS_Fan connector(3 or 4 pins smart fan) 1 x Front panel switch/Led header 1 x Serial Port header 1 x Print port header 2 x Serial ATA connectors 1 x Case open header 1 x clear CMOS header 1 x S/PDIF header 1 x Buzzer |