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2. USB hardware - Wikipedia

   en.wikipedia.org/wiki/USB_hardware

   Pin configuration of Type-A and Type-B plugs viewed end-on. The Type-A plug. This plug has an elongated rectangular cross-section, inserts into a Type-A receptacle on a downstream port on a USB host or hub, and carries both power and data. Captive cables on USB devices such as keyboards or mice terminate with a Type-A plug.

3. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   A battery charger, recharger, or simply charger, [1][2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage, current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged. Some battery types have high tolerance ...

4. USB - Wikipedia

   en.wikipedia.org/wiki/USB

   Historically this was made clear by the fact that hosts had only Type-A ports and peripheral devices had only Type-B, and every (valid) cable had one Type-A plug and one Type-B plug. USB-C (Type-C) is a single connector that replaces all Type-A and Type-B connectors (legacy connectors), so when both sides are modern equipment with USB-C ports ...

5. Quick Charge - Wikipedia

   en.wikipedia.org/wiki/Quick_Charge

   A USB charger that supports QC3.0. Quick Charge (QC) is a proprietary battery charging protocol developed by Qualcomm, used for managing power delivered over USB, mainly by communicating to the power supply and negotiating a voltage. Quick Charge is supported by devices such as mobile phones which run on Qualcomm system-on-chip (SoCs), and by ...

6. Universal charger - Wikipedia

   en.wikipedia.org/wiki/Universal_charger

   Universal charger. Universal charger or common charger refers to various projects to standardize the connectors of power supplies, particularly for battery-powered devices. Since the publication of the USB Power Delivery standard in 2012, and the USB-C connector in 2014, USB-C has become a widespread standard for charging mobile phones.

7. USB-C - Wikipedia

   en.wikipedia.org/wiki/USB-C

   USB-C (SuperSpeed USB 5Gbps) receptacle on an MSI laptop. USB-C, or USB Type-C, is a 24-pin connector (not a protocol) that supersedes previous USB connectors and can carry audio, video, and other data, to connect to monitors or external drives. It can also provide and receive power, to power, e.g., a laptop or a mobile phone.