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Frequently Asked Questions

How do I know I plug in a Hi-Speed USB device?

USB 2.0, Hi Speed USB FAQ
The simplest way is to look for a Certified Hi-Speed USB logo on the retail packaging or on the product itself. The logo is exactly as shown on the right; it tells you what you are plugging into your USB port has passed the Hi-Speed compliance tests, meaning the product can enter Hi-speed USB mode if your system supports it. USBInfo & SiSoftware Sandra can also report USB speed status.
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What is Hi-Speed USB 2.0?

Intel? Desktop Board D845GRG - Frequently Asked Questions
USB 2.0 offers high-speed 40X performance over fast speed USB 1.1 based systems. USB 2.0 is designed for supporting devices with high I/O requirements such as scanners, storage, cameras, and LAN devices. USB 2.0 is backwards compatible with USB 1.1 so that you can continue to use devices, such as USB keyboards and mice, which do not require the high bandwidth that USB 2.0 offers. When purchasing USB 2.0 devices look for the High Speed USB logo. This ensures that the device meets the USB 2.
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USB.org - USB FAQ
There is considerable information, as well as the latest copy of the USB 2.0 specification on the www.usb.org/developers page.
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What are USB Hi-Speed and USB Basic Speed logos?

Computer Tips
These logos are part of USB Promoter Group's branding program that ensures the quality of USB products. The USB 2.0 certified products would display a blue, white and red logo, bearing the words Certified and Hi-Speed. The classic USB 1.1 certified products would display a black and white logo with the words USB and Certified. Under a license from USB-IF, products must pass the compliance tests before manufacturers can use one of the two trademarked logos.
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Is there a difference between Hi-Speed USB and USB 2.0?

USB FAQ - Its-usb.com
There is a difference in Hi-Speed USB and USB 2.0. The difference is that the USB 2.0 specification covers all three speeds 480 Mbps, 12 Mbps, and 1.5 Mbps. "Hi-Speed USB" refers to just the 480 Mbps portion of the USB 2.0 specification. We now use the term "USB" to refer to the 12Mbps and 1.5Mbps speeds.
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Where do I plug in my USB flash drive?

College of Arts & Sciences Computing Center
All computers are equipped with multiple ports for inserting USB devices. Most workstations have a USB cable that is attached to the table for more convenient access to the ports.
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If it isn't recognized as a USB device, why does it have a USB plug on it?

BibleStick
You can power your BibleStick through the USB port on your computer (and save your battery), but it won't recognize your BIbleStick as a data storage device, so you can't erase this and put something else on it.
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Where can I get more info on Hi-Speed USB 2.0 in general?

USB FAQ - Its-usb.com
If you have not found what you are after here, the USB-IF web site is the definitive source for all information pertaining to USB 2.0.
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Will my PC today work with a Hi-Speed USB 2.0 peripheral product?

FAQ on USB memory Sticks, USB Flash Drives from CheapMemory,...
Assuming you have a PC that has USB 1.1 (which is most likely), if you plug your Hi-Speed USB 2.0 peripheral into the USB 1.1 system, your system will perform at the USB 1.1 speed. If you would like to use High-speed USB 2.0, you will need to update your PC either by adding in a PCI add-in card or purchasing a new MB with a discrete host controller that supports Hi-Speed USB 2.0 and installing Hi-Speed USB 2.0 drivers.
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Is there a difference between Hi-Speed USB and USB 2.0? Which is the correct nomenclature?

Universal Serial Bus (USB*) Frequently Asked Questions
There is a difference in Hi-Speed USB and USB 2.0. The difference is that the USB 2.0 specification covers all three speeds 480 Mbps, 12 Mbps, and 1.5 Mbps. "Hi-Speed USB" refers to just the 480 Mbps portion of the USB 2.0 specification. We now use the term "USB" to refer to the 12Mbps and 1.5Mbps speeds.
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What can I do about the error message "Could not find USB device"?

Chapter 3. Frequently Asked Questions (FAQ)
The exact error message looks like Could not find USB device (vendor 0x0000, product 0x0000). Make sure this device is connected to the computer You have to set up the permissions on your USB device correctly. See Section 4.3, "Setting up permissions for USB ports".
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Can I plug the SPA-2000 Phone Device into my USB connection?

Welcome to MyPhoneCompany
You need to be using an Ethernet connection to use our service. If your Internet modem only has a USB port, you can purchase a ???USB to Ethernet??? converter to connect to a router. Then you can connect your computer and the SPA-2000 to the router.
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Can I plug in and unplug a USB Flash Memory TransMemoryTM while the device is turned on?

USB Flash Memory TransMemory FAQ | TOSHIBA Pocket Media
On Windows® 98 Second Edition, be sure that the application (reading or writing of data) has finished operations, and that the access lamp on the USB Flash Memory TransMemoryTM is not flashing. On Windows® Millennium Edition, Windows® 2000 Professional, Windows® XP Home Edition, and Windows® XP Professional Edition, make sure that in the task bar USB Flash Memory TransMemoryTM has ended and it is safe to remove it.
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If Hi-Speed USB 2.0 is 40X faster, why is it that a CDRW, for example, is only 6X faster?

FAQ on USB memory Sticks, USB Flash Drives from CheapMemory,...
The 40X speed improvement is specific to the bus. What this literally means, is that the bus is no longer the bottleneck in performance. The actual performance improvement for a given product is dependent on how fast that product can run. Over time, you should see product vendors improving their products to take advantage of the 40X bus.
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I have a PC that runs Windows 98, can I still use Hi-Speed USB 2.0 products?

FAQ on USB memory Sticks, USB Flash Drives from CheapMemory,...
Yes, assuming first that you install a Hi-Speed USB 2.0 add-in card and you install a Hi-Speed USB 2.0 driver. Since Microsoft is only developing drivers for Windows XP and 2000, you will have to use a 3rd party vendor's drivers. In most cases, if you upgrade your PC with an add-in card, it will come with a Hi-Speed USB 2.0 driver install CD, that covers 98, 98SE, and ME.
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Q6. How much faster is Serial ATA (SATA II) than Firewire and Hi-Speed USB?

welcome
Because SATA II is nearly four times faster than Firewire and over six times faster than USB, it is the ideal interface for audio and video editing applications, high-end graphics, and all your other capacity hungry applications that demand continuous high performance throughput. A7. When an external drive without RAID fails, all data is lost. Without RAID a failed drive can mean the loss of hours of irreplaceable creative output.
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How do I determine whether my device runs at USB 2.0 speed?

Solaris Ready USB FAQ
On Solaris 8 and Solaris 9, check with prtconf -D whether the host controller is usba10_ehci, for example on Solaris 9: usb, instance #0 (driver name: usba10_ehci) On Solaris 10 and later, check /var/adm/messages for messages similar to: Dec 13 17:05:57 mysystem usba: [ID 912658 kern.info] USB 2.0 device You can use 'cfgadm' to find the port that your device is connected to. See the man page cfgadm_usb(1M) for details.
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Why does my screen display an unknown device after I plug in the USB ROCKEY4?

Rockey.com.my - Rockey4: Hardware based software security do...
It may be caused by interference or bad contact points. Try unplugging the device and then plugging it in again. It is possible that the USB support option inside the BIOS has been disabled. You can enable USB support in the CMOS functions menu when your computer is booting up. Although the file RYDLL32.DLL is under the same directory as the program, FoxPro and VB programs will only search for DLLs under the system directory, so you should copy the file RYDLL32.DLL into the system directory.
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USB? Can I plug my USB stuff in then?

myGP2X: The GP2X FAQ
The short answer to this is no and the long answer is maybe. As the USB port is un-powered, this rules out a lot of the more interesting applications such as WiFi. The primary use will probably be for transferring files and similar data uses. That's not to say other uses won't appear. Where's there's a will, there's usually a way!
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How do I know for sure if I can get hi-speed internet from WiFi?

menu1
The best way to find out is to simply order it. When our installation technician comes to your location they check for a good connection using the equipment that will be yours. If they are not able to get a good connection, you will get a full refund.
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Why do I get the error message "Could not claim the USB device"?

Chapter 3. Frequently Asked Questions (FAQ)
The exact message looks like *** Error ('Could not claim the USB device') *** Could not claim interface 0 (Operation not permitted). Make sure no other program or kernel module (e.g. dc2xx or stv680) is using the device and you have read/write access to the device. You have to make sure that no such kernel module is loaded and that you have set up the permissions on your USB device correctly, such that you have (non-root) write access to the camera device.
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When did Intel release its first chipsets with the integrated Hi-Speed USB 2.0 controller?

Universal Serial Bus (USB*) Frequently Asked Questions
Intel released the 845E, 845G, and 845GL chipsets in May 2002, all of which integrated Hi-Speed USB 2.0 in the I/O controller hub (ICH4).
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How do I know when file transfer has finished and it is safe to remove the USB device?

FAQ | Support | Yamaha Pro Audio
You can plug in the device at any time and remove it without any kind of unmounting procedure. However you should not rapidly remove the key after insertion or remove the USB device whilst data is being transferred. You can tell that the device is transferring data because M7CL will indicate ACCESS in the top left corner and the device led will flash rapidly.
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Why is my USB device not operating to its specification?

Intel? Desktop Board D845GRG - Frequently Asked Questions
Each USB port is treated as an independent USB path, and the performance of each USB port is dependent upon the detected USB device(s) within that USB port (point-to-point) device connection. Its performance will be limited to the least capable performance element within that ports connection. For example, if you connect a USB 2.0 high speed device to a USB 1.1 Hub, which is then connected to a USB port on the motherboard that connected USB 2.
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How do I use my USB device in the lab?

UT Physics Linux FAQ
Before inserting your USB memory stick, please log in to the machine directly (not via SSH from another system). Logging in at the console will ensure that the USB memory device is mounted with you as the owner. It is safest to insert the device into one of the USB ports on the front of the computer (rather than those on the back or on the keyboard).
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Why does my USB device seem so slow?

UT Physics Linux FAQ
It might seem that the USB device is fairly slow, especially when writing to the device. This is for two reasons: Firstly, USB devices are substantially slower than hard drives or other high-speed media; furthermore, larger-capacity flash memory devices are often slower for write access than low-capacity devices. Secondly, we mount the device in "synchronous" mode, which makes writes seem slower than the more common "asynchronous" mode.
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How fast is Rogers Hi-Speed?

The maximum download speed with the Rogers Hi-Speed service is 1.5 Mbps (megabits per second), or the equivalent of 187.5 KB/sec (kilobytes per second). Conversely, the maximum upload throughput is 400 Kbps (kilobits per second), or the equivalent of 50 KB/sec (kilobytes per second). Hi-Speed Lite Customers can only achieve a maximum download speed of 128kbps (kilobits per second), or the equivalent of 16KB/sec. Maximum upload speed is limited to 64kbps, or 8K/sec.
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