Archived from groups: microsoft.public.windowsxp.hardware (
More info?)
Your post 20 Jan timed 21.30 - (the point I and others addressed)
QUOTE..... When I plugged the usb cord of an HP printer to the hub the
screen popped up a message saying I should plug into a 2.0 port. UNQUOTE
To answer the question about (relative) speed of data transfer with USB
Speed - HDD transfer to external device is slower than the reverse path
(write time of HDD is optimum fast)
Direct port versus hub port - direct port is faster than using hub port,
it's a shorter electronic path.
Type of data file being transferred affects speed of transfer, as does
degree of fragmentation of large files.
In all cases, USB2 is noticeably faster than USB1. The degree is dependant
on any/all the 3 conditions above, so is a variable, not a constant.
Sincerely, Len.
"ME" <ME@hotmail.com> wrote in message
news:O8kA5aAAFHA.2704@TK2MSFTNGP10.phx.gbl...
> what i meant the bottle neck was the traffic is down to 1.1 at the hub,
> regardless the number of devices hooked up to the hub. whatever, in my
> case i do have the printer connected directly to the usb port on the back.
>
> "yabbadoo" <lsdolby@ignore.ntlwor.com> wrote in message
> news:%23HJ4Yd%23$EHA.3840@tk2msftngp13.phx.gbl...
>> It's not a hub bottleneck. It's because it's a USB1.1 hub. You can't get
>> USB2 speed from a device connected to a 1.1 hub. You need to use a USB2
>> hub, else the USB2 port defaults to 1.1 for any/all devices connected to
>> the 1.1 hub.
>>
>> Since it's a printer, best practice anyway to connect direct to USB2 port
>> rather than through a hub - a permanent connection if possible. This
>> maximises speed, ensures staability of settings, avoids hub bottleneck.
>> Sincerely, Len
>>
>>
>> "ME" <ME@hotmail.com> wrote in message
>> news:eWzStq9$EHA.1452@TK2MSFTNGP11.phx.gbl...
>>>I know the bottle neck at the hub.
>>>
>>> "yabbadoo" <lsdolby@ignore.ntlwor.com> wrote in message
>>> news:OWA4Wu1$EHA.1564@TK2MSFTNGP09.phx.gbl...
>>>> USB 1.1 plugged into USB 2 port will operate as 1.1 (backward
>>>> compatability of USB2)
>>>>
>>>> USB 2 printer needs to be direct into USB2 port, not the 1.1 hub -
>>>> which is what in effect it's telling you - but nevertheless printer
>>>> should still work, at 1.1 speed.
>>>>
>>>> HTH Len
>>>>
>>>>
>>>> "ME" <ME@hotmail.com> wrote in message
>>>> news:OUNDVg0$EHA.3592@TK2MSFTNGP09.phx.gbl...
>>>>> how do I tell the controller is usb 2.0 hardware? Dell sold the PC
>>>>> said it is usb 2.0. I have a powered external 1.1 hub hooked up to
>>>>> the Dell. When I plugged the usb cord of an HP printer to the hub the
>>>>> screen popped up a message saying I should plug into a 2.0 port.
>>>>>
>>>>>
>>>>> "Alex Nichol" <alexn.mvpdts@ntlworld.delete.com> wrote in message
>>>>> news:t3gvu0tafc2asja4t9ddujh0rd9tjj8e66@4ax.com...
>>>>>> ME wrote:
>>>>>>
>>>>>>>I have an external USB 2.0 enclosure hooking directly to USB port on
>>>>>>>my Dell
>>>>>>>PC. The speed when I transfer files b/w the external drive and the
>>>>>>>PC is
>>>>>>>not as I expected. It takes more than 30 minutes to transfer 4GB of
>>>>>>>data.
>>>>>>>Is this accepted for a USB connection? The external drive is WD
>>>>>>>250GB. PC
>>>>>>>is XP SP2 with USB 2.0 driver loaded . Thanks.
>>>>>>>
>>>>>>
>>>>>> The controller on the machine into which you plug the USB2.0 device
>>>>>> must
>>>>>> itself be USB 2.0 hardware. Where there are multiple ports and the
>>>>>> machine has nominal USB 2.0 support, not all ports may have it
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Alex Nichol MS MVP (Windows Technologies)
>>>>>> Bournemouth, U.K. Alexn@mvps.D8E8L.org (remove the D8 bit)
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>