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2. USB hub - Wikipedia

   en.wikipedia.org/wiki/USB_hub

   A four-port "compact design" USB hub: upstream and downstream ports shown. A USB hub is a device that expands a single Universal Serial Bus (USB) port into several so that there are more ports available to connect devices to a host system, similar to a power strip. All devices connected through a USB hub share the bandwidth available to that hub.

3. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   Serial port, parallel port, game port, Apple Desktop Bus, PS/2 port, and FireWire (IEEE 1394) Universal Serial Bus ( USB) is an industry standard that allows data exchange and delivery of power between many types of electronics. It specifies its architecture, in particular its physical interface, and communication protocols for data transfer ...

4. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   To allow for voltage drops, the voltage at the host port, hub port, and device are specified to be at least 4.75 V, 4.4 V, and 4.35 V respectively by USB 2.0 for low-power devices, [a] but must be at least 4.75 V at all locations for high-power [b] devices (however, high-power devices are required to operate as a low-powered device so that they ...

5. USB 3.0 - Wikipedia

   en.wikipedia.org/wiki/USB_3.0

   USB 3.0 port provided by an ExpressCard-to-USB 3.0 adapter may be connected to a separately-powered USB 3.0 hub, with external devices connected to that USB 3.0 hub. On the motherboards of desktop PCs which have PCI Express (PCIe) slots (or the older PCI standard), USB 3.0 support can be added as a PCI Express expansion card.

6. This device lets you use your phone or tablet hands-free ...

   www.aol.com/lifestyle/tablet-phone-ereader-hands...

   Hands Free Tablet & Stand Holder Clip. $16 $26 Save $10. Whether you're a new parent doing midnight feedings or you hate holding up a book while trying to read in bed, this hands-free tablet stand ...

7. PoweredUSB - Wikipedia

   en.wikipedia.org/wiki/PoweredUSB

   PoweredUSB. PoweredUSB, also known as Retail USB, USB PlusPower, USB +Power, and USB Power Plus, [ 1] is an addition to the Universal Serial Bus standard that allows for higher-power devices to obtain power through their USB host instead of requiring an independent power supply or external AC adapter. It is mostly used in point-of-sale ...