USB 3.0 and 2.0

sarus345 · Mar 10, 2014

I had a question before I begin building. Do you have to have BOTH USB 2.0 and 3.0 connected in order to have your computer running successfully or can you have only 3.0 connected. The reason I am asking is because I have a 3.0 and 2.0 connector combined together and it says you only have to have only one connected, so I don't know which one to connect. Do I have to have both connected? Is my case most common or separate 3.0 and 2.0 cables common?

Ahmadjon · Mar 10, 2014

When you assemble your PC you should connect all USB cables (2.0, 3.0)! Don't worry they will work properly!

Ahmadjon · Mar 10, 2014

But if your case has 2.0 and 3.0 in one cable you should connect only one because USB 2.0 and 3.0 connectors are different, you can connect USB 3.0 to only 3.0 and 2.0 to only 2.0 connector!

sarus345 · Mar 10, 2014

Ahmadjon :

I don't think so. It says you can't have both connected. Any other option or anything? Oh and when you connect USB headers, does that only apply to the front of the computer only or somewhere else too?

Ahmadjon · Mar 10, 2014

So does your case have USB 2.0 and 3.0 headers?

sarus345 · Mar 10, 2014

Ahmadjon :

I have no headers. Just one wire that is a 3.0 connector which is also combined with a 2.0 connector and it tells me I can't connect both, so what do I do?

Ahmadjon · Mar 10, 2014

sarus345 :

What case do you have could you link your case please?

sarus345 · Mar 10, 2014

Ahmadjon :

sarus345 :

What case do you have could you link your case please?

http://www.newegg.com/Product/Product.aspx?Item=N82E16811129021

Ahmadjon · Mar 10, 2014

Now i understand! Your case has combo port because many old mobo doesn't have USB 3.0 ports so in this case it's possible to use USB 2.0 (combo cable) on 3.0 header if you plug USB 2.0 cable on your mobo!
So your mobo should have USB 3.0 ports! just connect USB 3.0 case cable onto your mobo port!

rehed21 · Mar 10, 2014

Ahmadjon is obviously busy and he would have told you to hook up the 3.0 unless you don't have the correct header on your motherboard in which case hook up the 2.0. Do not hook up both.

sarus345 · Mar 10, 2014

Ahmadjon :

So you don't have to have both in right? My mother board is "http://www.newegg.com/Product/Product.aspx?Item=N82E16813131980" If I only have the 3.0 header plugged in, can I use the 2.0 ports on the back or it won't work?

Ahmadjon · Mar 10, 2014

If you plug 3.0, you can use both, USB 2.0 will work on 3.0 and vice versa

Ahmadjon · Mar 10, 2014

http://en.wikipedia.org/wiki/USB_3.0

sarus345 · Mar 10, 2014

Ahmadjon :

There is a note inside the case that says you can ONLY PLUG IN one. Either the 3.0 header or the 2.0 header. I only have to use one, so in this case which one do I plug in. Is it normal to only plug in one? In most cases, people have separate 3.0 and 2.0 headers and they connect both of them. Do I have to route the cables through the back and hook them up to the motherboard ports or what?

Ahmadjon · Mar 10, 2014

Sorry! i updated message i meant if you plug your case USB 3.0 cable on your mobo USB 3.0 header! sorry again

Ahmadjon · Mar 10, 2014

Just connect USB 3.0 cable from case to USB 3.0 header on your motherboard and all USB 2.0, 3.0 will work together on your case headers!

sarus345 · Mar 10, 2014

Ahmadjon :

Thanks so much and one more thing, I don't route anything from the back right?

Ahmadjon · Mar 10, 2014

sarus345 :

You're welcome

You don't have to do something with the back of your PC just connect case 3.0 cable to mobo 3.0 header and you'll be fine

USB 3.0 and 2.0

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