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In newer vehicles, one or more USB connectors may also be provided. Plus in newer cars, the power output from the lighter plug is so reliable that it can charge laptops, without any voltage problems. Standardized 12 volt DC automobile plugs are defined in the United States by UL Standard 2089 regarding vehicle battery adapters. This standard ...
Since the Universal Serial Bus specification provides five-volt power, it is possible to use a USB cable to connect a device to a power supply. Products based on this approach include chargers for cellular phones, portable digital audio players, and tablet computers. They may be fully compliant USB peripheral devices or uncontrolled, simple ...
The Universal Serial Bus Micro-USB Cables and Connectors Specification details the mechanical characteristics of Micro-A plugs, Micro-AB receptacles (which accept both Micro-A and Micro-B plugs), and Micro-B plugs and receptacles, [17] along with a Standard-A receptacle to a Micro-A plug adapter.
The device comes with two 12-inch cords, a USB-C to USB-A and a USB-C to USB-C, and there's a pass-through USB-A port for basic charging. The device is also accompanied by a one-year warranty for ...
After previous connectors were deprecated in USB 3.2, the new USB-C plug has become a new standard for charging (and data transfer) over USB. [13] In the European Union, the Radio Equipment Directive 2021/0291, requires new smartphones to use USB-C as a universal charger by the end of 2024, and laptops by 2026. [14] [15]
New-to-existing cables and adapters have been defined. Some USB Type-C cables and connectors can support "USB performance at SuperSpeed USB 10 Gbps (USB 3.1) and USB Power Delivery up to 100W" [19] [20] [21] although USB Type-C cables are only required to support USB 2.0 (non-SuperSpeed) data rates and 3 A (60 W at 20 V) of current. [22]
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