MB-668 Installation Guide 5Quick Installation GuideMB-668List of ConnectorsConnectors on board access link to external devices such as harddisk drives, a keyboard, or floppy drives.The following consist the list of each connector function:ConnectorsLabel FunctionCN2 ATX Power ConnectorCN10, CN21 Parallel Port 1 and 2 ConnectorsCN5,CN19,CN20 Serial Port COM2, COM3 and COM4 Conn.CN6, CN26 USB ConnectorCN7 Floppy Drive ConnectorCN8 IrDA ConnectorCN9 (FPC) Floppy Drive ConnectorCN3, CN12 Display Connectors (CRT and LCD)CN11, CN27 Keyboard and Mouse ConnectorCN13 CPU Fan Power ConnectorCN14 RJ-45 Ethernet ConnectorCN15 IDE LS-120 ConnectorCN16 Primary IDE Hard Drive ConnectorCN17 Secondary IDE Hard Drive ConnectorCN22 Serial Port COM 1 ConnectorCN24 System Fan Power ConnectorCN25 LCD Backlight Power ConnectorCN28 Audio ConnectorCN29 Digital I/O Connector