In January 2011, the International Electrotechnical Commission (IEC) released its version of the (EU's) common EPS standard as IEC 62684:2011. When adding USB device response time, delays from the maximum number of hubs added to the delays from connecting cables, the maximum acceptable delay per cable amounts to 26 ns. USB cables exist with various combinations of plugs on each end of the cable, as displayed below in the USB cables matrix. As of 14 June 2007 [update], all new mobile phones applying for a license in China are required to use a USB port as a power port for battery charging. USB A to Micro B, ideal for connecting and charging devices such as mobile phones and digital cameras with micro usb port, USB type A to USB Micro B.

USB has been selected as the standard charging format for many mobile phones, reducing the proliferation of proprietary chargers.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. Manufacturers of personal electronic devices might not include a USB standard connector on their product for technical or marketing reasons. On Dell, HP and Toshiba laptops, sleep-and-charge USB ports are marked with the standard USB symbol with an added lightning bolt or battery icon on the right side. In June 2009, the European Commission organized a voluntary Memorandum of Understanding (MoU) to adopt micro-USB as a common standard for charging smartphones marketed in the European Union.

Parties who do not comply with this will be required to pay compensation and be prosecuted in accordance with section 38. In most modern technology devices, there will be some form of USB connection available to connect equipment. Micro USB cable for connecting devices such as Android mobile phones, digital cameras and tablets with a micro usb port, type A to Micro B. Connector properties [ edit ] Non-standard "USB extension cable", plug on the left, receptacle on the right.defines an optional Programmable Power Supply (PPS) protocol that allows granular control over V BUS power, allowing a range of 3. Please complete the purchase (or remove the quote – don't worry it's still available in My Account) before adding these additional items. in April 2000, mostly used with smaller devices such as digital cameras, smartphones, and tablet computers. It is commonly used in point of sale systems to power peripherals such as barcode readers, credit card terminals, and printers. Micro-USB connectors, which were announced by the USB-IF on January 4, 2007, [13] [14] have a similar width to Mini-USB, but approximately half the thickness, enabling their integration into thinner portable devices.

Optionally, the hub controller may draw power for its operation as a low-power device, but all high-power ports must draw from the hub's self-power.Accessory charging adapters (ACA) are devices that provide portable charging power to an On-The-Go connection between host and peripheral. Unlike other data buses (such as Ethernet), USB connections are directed; a host device has "downstream" facing ports that connect to the "upstream" facing ports of devices.