1, know front USB cable
Take you to know about the chassis front USB each connection definition, usually red line: positive (connection of identification for: + 5 v or VCC), white line: negative voltage Data cable (marked as: Data - or USBPort), green line: positive voltage Data cable (marked as: Data + or USBPort +), black line: grounding (marked as: GROUND or GND). Some chassis manufacturers based on its own process design requirements, the color of the signal with the given are not identical, and considering the convenience of connection with main board, accuracy and generality, some chassis manufacturers will USB cable to do a module, and in some cases the manufacturer considering the USB cable and motherboard connection of generality, will signal wire is dispersed and for each a piece of signal wire for identification, this is in order to adapt to many types of USB interface.
2, connection front USB cable
Front USB interface are similar to PATA interface design, can prevent stay type design methods, we only in the right direction to insert the USB interface, the direction is not correct is unable to access, greatly carry cover the work efficiency. Now the general case will lead USB connection made into a whole, as long as everyone on the mainboard find corresponding pin, put together is ok. Generally speaking, on the mainboard front USB pin all can pin 9 of the connection mode, and beside all have obvious USB mark. At present general chassis on the front USB attachment is such a integrate, above a total of eight lines, respectively is VCC, Data +, Data -, GND, the integration of the need not say more, direct on line. If it is separate, usually are in line with red, white, green, black order connection.
3, connecting the matters needing attention
Along with the progress of the manufacturers, front USB cable link has very convenient, but everyone in the connection before or to read the instruction on the introduction, avoid connection is not correct and burned motherboard. There is a certain brand of motherboard if two front USB connect USB devices at the same time, it will be one of the can't normal use, this belongs to the main board, two front USB used alone or normal.
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