What is the max cable length USB

By jodyandterry ·
In a home computer system running Win XP how long can I make the cable(s) to USB devices?
i.e. webcams, keyboards/mice, wireless network adaptors, etc.

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5 meters

by amirza In reply to What is the max cable len ...

In practice, the USB specification limits the length of a cable between full speed devices to 5 meters (a little under 16 feet 5 inches). For a low speed device the limit is 3 meters (9 feet 10 inches).

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Hi, Jody & Terry!

by nepenthe0 In reply to What is the max cable len ...

Welcome back to the Forum! OH Smeg posted the following on 5 May'08:

What is the maximum length of USB cable that you consider using? I don't think you can purchase a USB cable longer than specified by the standard.

If you need wireless connectivity to your computer, Bluetooth has the solution for you:

Hope this helps. Please post back if you need clarification.

Rick/Portland, OR

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Well as posted above the upper limit is 5 meters

by OH Smeg In reply to What is the max cable len ...

But that depends on the device being used. Things like scanners which draw their power from th USB Port should be connected to a Back USB Port and use the cable that came with the Scanner so the length of that cable is the correct answer for that device.

If you are planing on using a lot of USB Devices you will need some Powered USB Hubs but for things like Keyboards I personally try to have these as short as possible so I only use the length of the keyboard/mouse lead connected to the Back USB Ports on a Desktop Computer.

The Printer leads can vary depending on the printer and here you really need to look in the Destruction Manual that comes with the Printer but remember the more that the printer does the shorter the USB Lead will be. Some Printers say do not exceed 15 meters on the USB Lead but these are straight Printers not Multifunction Devices.

For WiFi Network USB Adapters I prefer them plugged directly into one of the Back Sockets on a Desktop or if the signal reception is poor a short USB Lead where you can move the Device to a better location where you get a signal but I keep these leads As Short As Possible. As from previous experience I've found that the WiFi USB Adapters are not overly reliable and tend to suffer Drop Out far too easily.


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