Illustrates the color coding recommendation for the USB 3.0 Standard-A connector. Integrators should make sure that the blue-colored receptacle housing is visible to users. When the recommended color is used, connector manufacturers and system To help users distinguish it from the USB 2.0 Standard-A connector.īlue (Pantone 300C) is the recommended color for the USB 3.0 Standard-A receptacle and plug Since both the USB 2.0 Standard-A and USB 3.0 Standard-A receptacles may co-exist on a host,Ĭolor coding is recommended for the USB 3.0 Standard-A connector (receptacle and plug) housings Help users distinguish the USB 3.0 Standard-A connector from the USB 2.0 Standard-A connector Per 3.1.1.1 of the USB SpecĪs an aid to users, USB 3.0 mandates standard coloring for plastic portionsĪ unique color coding is recommended for the USB 3.0 Standard-A connector plastic housings to Now, it is electrically backward compatible with the old 4 pin connector of the 2.0 and lower USB, but a 'real' USB3 port will have 9 pins on it (and be blue, the color is part of the spec). The final connector does not have 4 pins, it has 9 why do i need to connect more on the internal plug if they are just going to be forever unused? So, new question, is it safe to just use the 4 pins that the current usb ports use from the 20pin header? as the original question stands: the ultimate connector going out of the case only has 4 pins. Ok, apparently i missed a pic on wikipedia that cames with no explanation besides the pinout, that hints we will have a (as far as i can tell from the pic, idiotic) 10pin wide full-USB3 connector at some point. The question is: Why does it have all those pins if the ultimate connector only have 4 pins anyway? but the USB3 for me is just crazy! and I really doubt if I crack open a chinese USB3 20pin cable i will find much more than just a wire going from a few select 4 pins. The older USB2 header, had for each port: If i understand this correctly, the 20pin header has for each USB3 port: While researching how to use my new motherboard with a 20pin USB3 header with my USB2 cables (so i wouldn't have to wait for yet another delivery), the farther i could go was this image

Pic usb 3 card