My laptop's USB ports advertised to be USB 2.0
When I use one of them to transfer a 106 MegaByte folder of many subfolders
and files to a Sandisk 256 MB flash drive it takes about fourty minutes 2.7
MegaBytes per Minute. Does this sound right for USB 2.0 or USB 1.1? The
new laptop is not executing any other programs and the hard disk light is
off.

Blue,
Your Port is USB 2.0 but I believe your sandisk flash drive is USB 1.1.
If the port and flash drive are USB 2.0. Then you need to remove the USB
1.1 driver from your system.
Also check your BIOS setting make sure USB is enabled.

Joseph chia

-----Original Message-----
From: Blue [mailto:me (AT) privacy (DOT) net]
Posted At: Tuesday, January 20, 2004 1:46 PM
Posted To: periphs
Conversation: USB flash drive speed USB1.1 vs USB 2.0
Subject: USB flash drive speed USB1.1 vs USB 2.0

My laptop's USB ports advertised to be USB 2.0
When I use one of them to transfer a 106 MegaByte folder of many
subfolders
and files to a Sandisk 256 MB flash drive it takes about fourty minutes
2.7
MegaBytes per Minute. Does this sound right for USB 2.0 or USB 1.1?
The
new laptop is not executing any other programs and the hard disk light
is
off.

"Chia Ah Tee, Joseph" <atchia9 (AT) pmail (DOT) ntu.edu.sg> wrote

Blue,
Your Port is USB 2.0 but I believe your sandisk flash drive is USB 1.1.

My Sandisk is type SCCZ2 - 256 "Cruzer Mini"
The Sandksk website says that is UISB2.0 and that was my understanding when
I bought it. Do you have other reason to suspect that it is USA1.1?

If the port and flash drive are USB 2.0. Then you need to remove the USB
1.1 driver from your system.

I removed the sandisk, and went into start/ctl panel/system/hardware/device
manager and removed all entries (there were nine) then rebooted and put the
sandisk in the USB port again. Everything reinstalled as before and the
speed was the same.


Also check your BIOS setting make sure USB is enabled.

I went into bios where "legacy usb support" was "enabled" Don't know what
that meant.

Really all I have to go on is the speed of writing the 100MB folder. Do you
know what the r4elative speeds are for USB1.1 and 2.0?

Blue

Joseph chia

-----Original Message-----
From: Blue [mailto:me (AT) privacy (DOT) net]
Posted At: Tuesday, January 20, 2004 1:46 PM
Posted To: periphs
Conversation: USB flash drive speed USB1.1 vs USB 2.0
Subject: USB flash drive speed USB1.1 vs USB 2.0

My laptop's USB ports advertised to be USB 2.0
When I use one of them to transfer a 106 MegaByte folder of many
subfolders
and files to a Sandisk 256 MB flash drive it takes about fourty minutes
2.7
MegaBytes per Minute. Does this sound right for USB 2.0 or USB 1.1?
The
new laptop is not executing any other programs and the hard disk light
is
off.

Big education for me. USB 1.1 and 2.0 are standards,
not speeds. Each has a high speed and a low speed. To know what your
peripheral is going to do you must ignore the 1.1 and 2.0 designations as
meaningless. What counts is does the peripheral have an artsy USB logo, and
does that artsy logo include the term "hi-speed"? If it does it will
transfer data at about fourty times as fast as if it does not - even if
it crows that it is "USB 2.0
"Blue" <me (AT) privacy (DOT) net> wrote

Blue wrote:
Heh. (Do the USB cards in the computer also need to specify "hi-speed",
or are they all hi-speed capable?)

Thanks for sharing the resolution of your question with the rest of us!

- Brooks

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