You’re seeing this ad based on the product’s relevance to your search query. Micro-A adapters allow for connection to standard-A plugs, as used on fixed or standard devices. [59], The intent is to permit uniformly charging laptops, tablets, USB-powered disks and similarly higher-power consumer electronics, as a natural extension of existing European and Chinese mobile telephone charging standards. USB provides for these devices as being self-powered. [84] Lenovo calls this feature Always On USB. This plug has an elongated rectangular cross-section, inserts into a type-A receptacle on a, The type-B plug: This plug has a near square cross-section with the top exterior corners beveled. Y-shaped USB 3.0 cable; with such a cable, a device can draw power from two USB ports simultaneously. This is because USB is hot-swappable, and the connectors would be used more frequently, and perhaps with less care, than previous connectors. Some non-standard USB devices use the 5 V power supply without participating in a proper USB network, which negotiates power draw with the host interface. Micro USB is the Universal Serial Bus’ (USB) mini version. USB cables have plugs, and the corresponding receptacles are on the computers or electronic devices. Some devices operate in different modes depending on whether the data connection is made. [71] In addition accessories are available that support USB PD Rev. "[48], USB Battery Charging defines a charging port, which may be a charging downstream port (CDP), with data, or a dedicated charging port (DCP) without data. Communication connector using the USB protocol, USB 3.x connectors and backward compatibility. As th… Revision 3.0 also adds extended configuration messages, fast role swap, and deprecates the BFSK protocol. ", "7.3.2 Bus Timing/Electrical Characteristics", "Universal Serial Bus 2.0 Specification, Section 7.2.1.3 Low-power Bus-powered Functions", "Universal Serial Bus 2.0 Specification, Section 7.2.1.4 High-power Bus-powered Functions", "Roundup: 2.5-inch Hard Disk Drives with 500 GB, 640 GB and 750 GB Storage Capacities (page 17)", "I have the drive plugged in but I cannot find the drive in "My Computer", why? [6][4], In standard USB, the electrical contacts in a USB connector are protected by an adjacent plastic tongue, and the entire connecting assembly is usually protected by an enclosing metal shell.[4]. If USB host commands are unanswered by the USB device within the allowed time, the host considers the command lost. [65] Power Delivery protocols have been updated to facilitate USB-C features such as cable ID function, Alternate Mode negotiation, increased VBUS currents, and VCONN-powered accessories. [66] USB PD Power Rules replace power profiles, defining four normative voltage levels at 5 V, 9 V, 15 V, and 20 V. Instead of six fixed profiles, power supplies may support any maximum source output power from 0.5 W to 100 W. The USB Power Delivery specification revision 3.0 defines a programmable power supply (PPS) protocol that allows granular control over VBUS power in 20 mV steps to facilitate constant current or constant voltage charging. The three sizes of USB connectors are the default or standard format intended for desktop or portable equipment, the mini intended for mobile equipment, and the thinner micro size, for low-profile mobile equipment such as mobile phones and tablets. In Europe, micro-USB became the defined common external power supply (EPS) for use with smartphones sold in the EU,[21] and 14 of the world's largest mobile phone manufacturers signed the EU's common EPS Memorandum of Understanding (MoU). The standard connectors were designed to be more robust than many past connectors. [85], 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. The small size of Micro USBs allowed manufacturers to produce slimmer devices. Thus, USB cables have different ends: A and B, with different physical connectors for each. If you are a seller and want to participate in this program click here to learn more. Many people might be reading this ask themselves, “Are there really more types of USB connectors?” The answer, of course, is yes. See the USB On-The-Go connectors section below for a more detailed summary description. The OTG device with the A-plug inserted is called the A-device and is responsible for powering the USB interface when required, and by default assumes the role of host. View Details $ … The Micro plug design is rated for at least 10,000 connect-disconnect cycles, which is more than the Mini plug design. The different A and B plugs prevent accidentally connecting two power sources. 1), an extension that specifies using certified PD aware USB cables with standard USB Type-A and Type-B connectors to deliver increased power (more than 7.5 W) to devices with greater power demands. Devices' configuration and low-power functions must operate down to 4.40 V at the hub port by USB 2.0 and that devices' configuration, low-power, and high-power functions must operate down to 4.00 V at the device port by USB 3.0. On the device side, a modified Micro-B plug (Micro-B SuperSpeed) is used to cater for the five additional pins required to achieve the USB 3.0 features (USB-C plug can also be used). The first Power Delivery specification defined six fixed power profiles for the power sources. In this way, cables with smaller 5 pin USB 2.0 Micro-B plugs can be plugged into devices with 10 contact USB 3.0 Micro-B receptacles and achieve backward compatibility. USB has been selected as the standard charging format for many mobile phones, reducing the proliferation of proprietary chargers. USB C to Micro 3.0 Cord 1ft, Fasgear Short Nylon Braided Metal Connector Type C 3.0 to Micro B Cable, Fast Charging Syncing Compatible for Toshiba Canvio,Westgate,Seagate,Galaxy S5 Note 3,etc (Black) … This creates the infamous one-sided USB connection that only works when the cable is insert… This feature has also been implemented on some laptop docking stations allowing device charging even when no laptop is present. Prior to the USB Battery Charging Specification, the USB specification required that devices connect in a low-power mode (100 mA maximum) and communicate their current requirements to the host, which then permits the device to switch into high-power mode. [60][61] The standard is designed to coexist with the previous USB Battery Charging specification.[62]. [1] The USB-C plug however is reversible. By design, it is difficult to insert a USB plug into its receptacle incorrectly. Full-featured USB-C 3.1 cables are electronically marked cables that contain a full set of wires and a chip with an ID function based on the configuration data channel and vendor-defined messages (VDMs) from the USB Power Delivery 2.0 specification. [53] Barnes & Noble Nook Color devices also require a special charger that runs at 1.9 amperes.[103]. What is the difference between USB micro-A and micro-B connectors? Welcome to Ponapoooo. [citation needed] Examples include USB-powered keyboard lights, fans, mug coolers and heaters, battery chargers, miniature vacuum cleaners, and even miniature lava lamps. The USB specification also defines limits to the size of a connecting device in the area around its plug, so that adjacent ports are not blocked. USB cables exist with various combinations of plugs on each end of the cable, as displayed below in the USB cables matrix. [19], Micro-USB was embraced as the "Universal Charging Solution" by the International Telecommunication Union (ITU) in October 2009.[20]. When D+ = D− = 2.0 V, the device may pull up to 900 mA. The charging port does not pass data, but does use the D± signals for charging port detection. [5] To accomplish this, a locking device was added and the leaf-spring was moved from the jack to the plug, so that the most-stressed part is on the cable side of the connection. Optionally, the hub controller may draw power for its operation as a low-power device, but all high-power ports draw from the hub's self-power. However, such devices may come with a Y-shaped cable that has two USB plugs (one for power and data, the other for only power), so as to draw power as two devices. Some USB ports and external hubs can, in practice, supply more power to USB devices than required by the specification but a standard-compliant device may not depend on this. For example, Qualcomm's Quick Charge 2.0 is able to deliver 18 W at a higher voltage, and VOOC delivers 20 W at the normal 5 V.[77] Some of these technologies, such as Quick Charge 4, eventually became compatible with USB PD again. The Micro USB was developed to standardize and streamline phone charging devices. However, some of this directed topology is lost with the advent of multi-purpose USB connections (such as USB On-The-Go in smartphones, and USB-powered Wi-Fi routers), which require A-to-A, B-to-B, and sometimes Y/splitter cables. The accessory port acts as any other port. Charging cables provide power connections, but not data. 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USB 2.0 Type C Male to Micro B Male Cable, 480M, 3A , Black Color, 30C-10UC-2CM1-2, LUOM USB 3.0 Micro Cable, USB 3.0 A to Micro B Cable Charger Compatible with Samsung Galaxy S5, Note 3, Note Pro 12.2, Hard Drive, Camera etc. USB cables and small USB devices are held in place by the gripping force from the receptacle, with no screws, clips, or thumb-turns as other connectors use. Since these currents are larger than in the original standard, the extra voltage drop in the cable reduces noise margins, causing problems with High Speed signaling. SuperSpeed uses separate transmit and receive differential pairs, which additionally require shielding (typically, shielded twisted pair but twinax is also mentioned by the specification). The modes have differing hardware and cabling requirements. In common practice, the A end is usually the standard format, and the B side varies over standard, mini, and micro. A small device that provides voltage and current readouts for devices charged over USB. "[96], In June 2009, many of the world's largest mobile phone manufacturers signed an EC-sponsored Memorandum of Understanding (MoU), agreeing to make most data-enabled mobile phones marketed in the European Union compatible with a common External Power Supply (common EPS). This may cause problems with some computers, such as drawing too much current and damaging circuitry. Modes are identified by their names and icons, and the specification suggests that plugs and receptacles be colour-coded (SuperSpeed is identified by blue). 2.0 at multiple voltages. Get it as soon as Tue, Dec 1. USB On-The-Go (OTG) introduces the concept of a device performing both master and slave roles. [27] The USB-C plug connects to both hosts and devices, replacing various Type-A and Type-B connectors and cables with a standard meant to be future-proof. 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