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2. USB 3.0 - Wikipedia

   en.wikipedia.org/wiki/USB_3.0

   Note the five additional pins on the underside of the tongue of the USB 3.0 port. Additional power for multiple ports on a laptop PC may be obtained in the following ways: Some ExpressCard-to-USB 3.0 adapters may connect by a cable to an additional USB 2.0 port on the computer, which supplies additional power. The ExpressCard may have a socket ...

3. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   A USB system consists of a host with one or more downstream facing ports (DFP), [61] and multiple peripherals, forming a tiered-star topology. Additional USB hubs may be included, allowing up to five tiers. A USB host may have multiple controllers, each with one or more ports. Up to 127 devices may be connected to a single host controller.

4. USB hub - Wikipedia

   en.wikipedia.org/wiki/USB_hub

   A four-port "long cable" "external box" 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 ...

5. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   Such devices can use an external power supply, which is allowed by the standard, or use a dual-input USB cable, one input of which is for power and data transfer, the other solely for power, which makes the device a non-standard USB device. Some USB ports and external hubs can, in practice, supply more power to USB devices than required by the ...

6. Port expander - Wikipedia

   en.wikipedia.org/wiki/Port_expander

   The VIC-20, for example, used a port expander to allow more than one cartridge to connect to the single ROM cartridge port. A port expander can be any device to which one existing or onboard port becomes two or more - for example: a KVM switch or a USB hub. Such expanders offer the advantage of allowing more devices of a particular port type to ...

7. We Sing Down Under - Wikipedia

   en.wikipedia.org/wiki/We_Sing_Down_Under

   Integrates with a USB hub; Due to hardware limitations with the Wii only having two USB ports, a USB hub is shipped with certain retail sku's to add more USB ports. The game uses the standard logitech USB microphone for the Wii.