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2. Samsung Galaxy Tab 2 7.0 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_Tab_2_7.0

   The Galaxy Tab 2 7.0 was announced on 13 February 2012. [5] It was shown along with the Galaxy Tab 2 10.1 at the 2012 Mobile World Conference. Although the two devices were originally scheduled to launch in March, they did not do so, with Samsung explaining that the delay was due to unspecified problems with Ice Cream Sandwich and that they would instead be released at the end of April. [6]

3. 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 ...

4. USB 3.0 - Wikipedia

   en.wikipedia.org/wiki/USB_3.0

   Conversely, it is possible to plug a USB 3.0 Standard-A plug into a USB 2.0 Standard-A receptacle. This is a principle of backward compatibility. The Standard-A plug is used for connecting to a computer port, at the host side. A USB 3.0 Standard-B receptacle accepts either a USB 3.0 Standard-B plug or a USB 2.0 Standard-B plug.

5. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   USB up to 2.0 allows a host or hub to provide up to 2.5 W to each device, in five discrete steps of 100 mA, and SuperSpeed devices (USB 3.x) allows a host or a hub to provide up to 4.5 W in six steps of 150 mA. USB-C allows for dual-lane operation of USB 3.x with larger unit load (250 mA; up to 7.5 W) [96]. USB-C also allows for Type-C Current ...

6. 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.

7. USB On-The-Go - Wikipedia

   en.wikipedia.org/wiki/USB_On-The-Go

   USB OTG is a part of a supplement [2] to the Universal Serial Bus (USB) 2.0 specification originally agreed upon in late 2001 and later revised. [3] The latest version of the supplement also defines behavior for an Embedded Host which has targeted abilities and the same USB Standard-A port used by PCs.