My MB has the 4 USB connectors on the back that are on the system bus. It
also has the 2 USB56 and 2 USB78 connectors on the MB (each is a 2x5). The
instructions for my Koutech front panel discuss running a USB cable from the
back of my computer (type a connection) through the box and into the front
panel (which is a type b connector).
I think this is lame since I have the USB connectors on my motherboard
already. So, rather than a 4' Type A connector from one of the USB slots on
my motherboard to the Type B on the back of the front panel sitting in one
of my 5" bays, I want to run a 1x5 cable from the USB56 to the back of the 5
front panel.
I think I didn't explain this clearly enough from the responses. So I need
a Type B USB to 2x5 cable.
I hadn't thought of what you're suggesting.
Here is the picture of the back of the front panel:
http://www.newegg.com/app/Showimage...08-03.JPG/20-162-408-02.JPG/20-162-408-01.JPG
Now, if I buy a regular USB Type A to Type B cable, cut off the Type A
connector and put a 2x5 connector on it, like this one:
http://www.frontx.com/cpx075_4.html
Will this work?
By the way, thanks for the responses. I appreciate the help.
-Will
I've never opened up a USB cable or a Firewire cable for that matter,
so I don't know how they are constructed. Not only do you need to buy
the shell, but you also need some pins. I think the pins would be
female and this item is a 10-pak of pins.
http://www.frontx.com/cpx076.html
I would purchase a couple of 1x5 shells, plus buy more pins then you
plan on using. This way, if you mess up, you'll have a few spares to
play with. By using the 1x5 shells, you can plan for the inevitable
day when you want to use the other half of USB56 or USB78.
Your options are to behead the USB cable, then strip short lengths of
insulation off each wire, followed by crimping or soldering the pins
to the wires. For the crimping, I've used both a crimping tool and I've
also tried to do it with pliers and a selection of blunt instruments.
It is pretty hard to crimp the pins without the proper tool, so soldering
is a more reliable method. (The crimp is sensitive to the diameter of
wire you are trying to crimp inside the lower fingers.) I try not to
let the solder wick up the wire too much, as the wire should remain
flexible around the top of the pin. There are usually a couple of metal
tabs at the top of the pin which are used for strain relief (i.e. do not
solder to top of pin), and the wire should be able to flex in that area
for longest life. Also, don't get solder into the mouth of the pin,
because then it won't go all the way down over the post.
Try a test solder with a spare piece of wire to one of your spare
pins first, then test it for fit over one of the posts on the 2x5
motherboard header. Once you are happy with the technique, do the four
wires on the cable. Don't shove the finished wire and pin into the
plastic shell until you are satisfied that all four wires are the
exact same length and their outside diameter is small enough that
they will all fit into the shell. Pulling the pins back out isn't
impossible, but depending on the shell manufacturer, some are the devil
to get back out. You have to pry at the plastic tab with a hobby (Xacto)
knife.
Now, one of the questions you'll need to answer, is whether the shield
on the USB cable should be soldered to the ground wire and both of them
joined to the same pin. Grounding the shield reduces interference with
televisions and radios, but many people seem to find that their interface
works OK without connecting the shield. As I don't use front panel
connectors on my computer, I don't have an opinion as to how much
difference this makes. If you have trouble with USB devices connecting
and disconnecting all the time, or cannot seem to get full bandwidth
(due to USB2.0 packet retries), then connecting the shield might help.
The shield will make a slight difference to the impedance seen by the
wires and that is why you might see a difference in error rate.
The reason I'm hedging my bets, is it will be harder to solder the
braid on the USB cable and the ground to the same pin. The result
will be an inflexible cable and you run the danger while soldering
the braid, of melting adjacent plastic insulation on the wire.
Again, a practice solder with a length of the USB wire will tell you
what to expect. Remember that where the braid and GND wire meet, they
have to fit through the aperture in the 1x5 plastic shell, so not too
much braid will fit through there.
USB+5 ---------- pin
Data- ---------- pin
Data+ ---------- pin
GND ---
|
+------- pin <--- This one will be tougher to make
|
Braid --- ^
|
+------ Four pins in a 1x5 header
Try to model your wire lengths and construction technique to look like
how Asus makes the USB PCI slot adapter. Generally the loose wire
region is kept pretty short, but that makes the fabrication tougher to
do.
I think this is the device here...
KOUTECH Black 10 IN 1 Card Reader, Model F7210-B Retail N82E16820162408
http://www.newegg.com/app/ViewProductDesc.asp?description=20-162-408&depa=1
BTW - Cool device.
Paul