There aren't many disadvantages to USB; it has been a very successful technology - this can be seen by the many applications it has been applied to.
The limitations are largely because of the applications. It has a limitation of signaling length of 5 meters; although with hubs, this can increased to 30m, this is clearly a cumbersome solution.
The original USB specification operated at low speeds (1.5Mbps), USB 2.0 addresses that by increasing that to 480Mbps. USB 3.0 has demonstrated 4.8Gbps.
Pros: Easy to carry, easy to use. Requires no external or internal power. The USB voltage from the computer supplies the power. Reasonbly inexpensive. Cons: Easy to loose, slow access times, (for streaming video) minimal storage. Breakable but mostly pretty durable. Hitting it may damage USB connector. May fall in to the wrong hands. Can be corrupted if disconnected incorrectly or dropped. Overall, a good investment to transfer small files from one computer to another. Most USB sticks are plug and play. They can also be used as a security key for hi-end software applications, and other access limitations.
Disadvantages are that they can sustain limited number of write and erase cycles before failure. Mid-range pen drives under normal conditions will support several hundred thousand cycles, although write operations will gradually slow as the device ages. Most USB pen drives do not include a write-protect mechanism. Write-protection makes a device suitable for repairing virus contaminated host computers without risk of infecting the USB flash drive itself. A drawback to the small size is that they are easily misplaced or lost. This is a particular problem if the data they contain are sensitive. It is for this reason that pen drives are now coming attached to key chains, necklaces and lanyards. They have limited capacity when compared to disk drives even in 2.5inch form factors. They get damaged or data is corrupted by severe physical impacts. Improperly wired USB ports can also destroy the circuitry of pen drives. Pen drives are costly.
USB has much slower data transfer rates than firewire, SATA or PATA interfaces. USB 2.0 has much higher speeds than USB 1.1, but due to compatibilty reasons many people end up inadvertantly running in a lower-speed compatibility mode.
One disadvantage of having a USB is the fact that it can be lost. Another disadvantage is the fact that UBSs can malfunction.
When using Line6 Monkey to update a product usb hubs can cause a software update to fail
A USB hub that runs on the power provided though the USB cable (rather than a USB hub powered by an external electrical supply).
A FD (flashdrive) is a portable data storage device that uses flash memory. A USB port is a port for a USB cable or anything that has USB capabilities, to plug into. For example, a FD normally plugs into a USB port.
An expansion hub is a powered hub that is 2.0 and USB. It simply allows you to connect to devices that you were not able to connect to with a regular hub.
Yes. A USB port is supposed to provide a specific amount of power for USB devices. A non-powered hub does not provide the proper power, but is still useful for USB devices that provide their own power (some printers, some cameras), or those that need very little like thumb drives.
Passive hubs- do not amplify the electrical signal of incoming packets before broadcasting them out to the network.
apple laptops really need a USB hub. USB hub makes your life easier!
yes
A usb hub refers to USB devices, just basically give you extra usb plugs. This is not related to a network hub.
A USB hub that runs on the power provided though the USB cable (rather than a USB hub powered by an external electrical supply).
Yes you can, but the USB 3.0 hub will only work at the speed of the USB 2.0 port.
A root hub is the socket on a computer's system board to which its USB ports are connected. A computer may have more than one USB root hub.
In regards to the average usb port hub and how many ports are available, this can vary. The average usb port hub can support up to four usb inputs at a time.
a USB hub
Make sure that the hub is actually a USB 2.0 hub, and that it is receiving full power.
The Generic USB Hub is a HI-SPEED USB device and will function at reduced speed when plugged into a non-HI-SPEED port
An active USB hub is a USB hub which has its own power supply. It will come with a DC power adaptor to power it. The USB system in your computer is capable of providing electrical power to devices which are plugged into it. When a large number of devices, or some particularly power-hungry devices are plugged into the USB system, it is possible to overexert this system. An active USB hub shores up this this power reducing the likelyhood of problems. A passive USB hub does not. Additionally, USB devices will often not work properly with more than 12 feet of cable. An active USB hub (or active USB extension cable) can help to overcome this limitation.
There are not different clarity levels of USB signal, this is a USB 2.0 hub and moves at 2.0 speeds.