Tom's Hardware > Forum > CPU & Components > Other Components > How does USB to PS/2 adapters work?
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master exon   09-19-2008 at 12:47:21 AM

Hello friends. I wan't sure of the right forum for this, but I hope I'm in the right place. I am in the possession of a PS/2 Keyboard I want to use, a laptop with only USB ports, and a USB cable ready for splicing.

Now I notice that USB has 4 wires and PS/2 has 4 wires. Is it possible for me to mod my PS/2 keyboard into a USB keyboard simply by soldering the USB cable onto it?

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eodeo   09-19-2008 at 01:47:10 AM
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there are ps2 to usb converters. I have one that takes both ps2 mouse and keyboard and makes it into single usb connector. Connected like that both mouse and keyboard work at the same time using only single usb.

I dont know enough about technology behind it to say anything with certainty, but I think you should get yourself one of these and leave soldering to others.

I'm pretty sure its dirt cheap too.

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master exon   09-19-2008 at 02:53:18 AM
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Soldering is easy as hell, I just don't want to pay $7 + shipping for something so stupid... At that price, I might as well buy a new keyboard.

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doomturkey   09-19-2008 at 03:10:06 AM
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master exon wrote :

Soldering is easy as hell, I just don't want to pay $7 + shipping for something so stupid... At that price, I might as well buy a new keyboard.


A $7 keyboard... WOO HOO

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JonathanDeane   09-19-2008 at 03:22:10 AM
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How about $3.57 free shipping and no taxes ?

http://www.dealextreme.com/details.dx/sku.6175

Or if your really cheap buy 2 of these for $1.18 each :)

http://www.dealextreme.com/details.dx/sku.744

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Message edited by JonathanDeane on 09-19-2008 at 03:27:07 AM
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master exon   09-19-2008 at 06:26:50 AM
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JonathanDeane wrote :

How about $3.57 free shipping and no taxes ?

http://www.dealextreme.com/details.dx/sku.6175

Or if your really cheap buy 2 of these for $1.18 each :)

http://www.dealextreme.com/details.dx/sku.744



amazing! soldering is more fun though...

doomturkey wrote :

A $7 keyboard... WOO HOO


if u ignore shipping... but i was looking more at $15.

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mi1ez   09-19-2008 at 02:10:24 PM
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you can't just solder a USB plug. they use completely different.. well, everything!
The keyboard will have no way of telling the PC that it is a keyboard as it doesn't have the right "bits" inside.

PS/2 has +5v, ground, clock and data
USB has +5v, ground, data+ and data-

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master exon   09-19-2008 at 11:25:41 PM
- 0 +

mi1ez wrote :

you can't just solder a USB plug. they use completely different.. well, everything!
The keyboard will have no way of telling the PC that it is a keyboard as it doesn't have the right "bits" inside.

PS/2 has +5v, ground, clock and data
USB has +5v, ground, data+ and data-



The exact information I was looking for. Thanks guys.

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