[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 initial versions of the USB standard specified connectors that were easy to use and that would have acceptable life spans; revisions of the standard added smaller connectors useful for compact portable devices. They are superseeded by the Micro-USB connector and it's successor USB type-C. It is a technology developed for transferring data between PC and digital devices. Modes are identified by their names and icons, and the specification suggests that plugs and receptacles be colour-coded (SuperSpeed is identified by blue). USB plugs fit one receptacle with notable exceptions for USB On-The-Go "AB" support and the general backward compatibility of USB 3.0 as shown. As a result a USB Mini connector was devised and this is used on many cameras and mobile phones where space is at a premium. 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 charging port must not apply current limiting below 0.5 A, and must not shut down below 1.5 A or before the voltage drops to 2 V.[49]. USB cables come with five different basic types of USB connector: types A, B, micro B, mini B, … Coiled Don't Pay. USB supplies power at 5 V ± 5% to power USB downstream devices. $8.99 $ 8. Instead of round pins, the connector uses flat contacts which can withstand continuous attachment and removal very well. [42][43][44][45] I.e., the maximum power may not be available. [49][50], Per the base specification, any device attached to a standard downstream port (SDP) must initially be a low-power device, with high-power mode contingent on later USB configuration by the host. 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. Other types of USB connectors are becoming increasingly more common. [80], Sleep-and-charge USB ports may be found colored differently than regular ports, typically red or yellow. [86][87] This was the first standard to use the convention of shorting D+ and D− in the charger. You might still find a USB Type-B port on some devices, but it’s becoming quite rare. The modes have differing hardware and cabling requirements. 45, International Electrotechnical Commission (IEC), "USB 2.0 Specification Engineering Change Notice (ECN) #1: Mini-B connector", "Universal Serial Bus Cables and Connectors Class Document Revision 2.0", "USB Type-C Connector Specifications Finalized", "Why was Mini-USB deprecated in favor of Micro-USB? 99. [29][30] Type-A and Type-B adaptors and cables are required for older devices to plug into USB-C hosts. Mini USB, micro USB, and “Type C” USB connectors are all used for a variety of different reasons. USB Products and Solutions. MORE: USB Type-C FAQ. Next we have the less common Type B port. This interface can be easily identified by its gray-colored receptacle and compact 5 pin design. Requires electronically marked 5 A cables, Section 1.4.5, pg. Micro-USB was endorsed as the standard connector for data and power on mobile devices by the cellular phone carrier group Open Mobile Terminal Platform (OMTP) in 2007. The maximum allowed cross-section of the overmold boot (which is part of the connector used for its handling) is 16 by 8 mm (0.63 by 0.31 in) for the standard-A plug type, while for the type-B it is 11.5 by 10.5 mm (0.45 by 0.41 in).[2]. USB Micro B USB Mini A USB Mini B 480 Mbps: 5 m: USB 3.2 Gen 1: USB 3.0 USB 3.1 Gen 1 SuperSpeed 2008 (USB 3.0) 2013 (USB 3.1) USB-A USB-B USB Micro B USB-C* 5 Gbps: 3 m: USB 3.2 Gen 2: USB 3.1 USB 3.1 Gen 2 SuperSpeed+ Where devices (for example, high-speed disk drives) require more power than a high-power device can draw,[46] they function erratically, if at all, from bus power of a single port. The USB 3.0 connector is designed for USB SuperSpeed applications; however, it will carry data from slower speed connections, and it is backwards compatible with USB 2.0 ports. When appropriately signaled by the ACA, the portable device can charge from the bus power as if there were a charging port present; any OTG signals over bus power are instead passed to the portable device via the ID signal. Full functionality of proprietary ports and cables with USB standard ports is not assured; for example, some devices only use the USB connection for battery charging and do not implement any data transfer functions. When a device detects it is plugged into a charger with a compatible faster-charging standard, the device pulls more current or the device tells the charger to increase the voltage or both to increase power (the details vary between standards).[100]. [19], Micro-USB was embraced as the "Universal Charging Solution" by the International Telecommunication Union (ITU) in October 2009.[20]. If an application on the B-device requires the role of host, then the Host Negotiation Protocol (HNP) is used to temporarily transfer the host role to the B-device. USB provides for these devices as being self-powered. The A-socket connector provides a "downstream" connection that is intended for use solely on host controllers and hubs. Revision 1.2 of the specification was released in 2010. [49], The charging device identifies a charging port by non-data signaling on the D+ and D− terminals. 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). [89][90], The GSM Association (GSMA) followed suit on 17 February 2009,[91][92][93][94] and on 22 April 2009, this was further endorsed by the CTIA – The Wireless Association,[95] with the International Telecommunication Union (ITU) announcing on 22 October 2009 that it had also embraced the Universal Charging Solution as its "energy-efficient one-charger-fits-all new mobile phone solution," and added: "Based on the Micro-USB interface, UCS chargers will also include a 4-star or higher efficiency rating—up to three times more energy-efficient than an unrated charger. ", "USB Type-C: One Cable to Connect Them All", "Technical Introduction of the New USB Type-C Connector", "DisplayPort Alternate Mode for USB Type-C Announced - Video, Power, & Data All Over Type-C", "On-The-Go and Embedded Host Supplement to the USB Revision 3.0 Specification", "Review: Logitech's Ultrathin mini keyboard cover makes the wrong tradeoffs", "What is the Maximum Length of a USB Cable? Compliant devices must either fit within the size restrictions or support a compliant extension cable that does. Mouser offers inventory, pricing, & datasheets for Mini USB Type B Connectors USB Connectors. Instead of the typical 5-pin Mini-b, this unofficial connector is found on many digital cameras, especially certain Kodak® models. Low-power devices may draw at most 1 unit load, and all devices must act as low-power devices before they are configured. This ID pin is connected to GND in Type-A plugs, and left unconnected in Type-B plugs. USB 3.0 provides two additional differential pairs (four wires, SSTx+, SSTx−, SSRx+ and SSRx−), providing full-duplex data transfers at SuperSpeed, which makes it similar to Serial ATA or single-lane PCI Express. Universal Serial Bus (USB) is an industry standard that establishes specifications for cables and connectors and protocols for connection, communication and power supply (interfacing) between computers, peripherals and other computers. The Micro plug design is rated for at least 10,000 connect-disconnect cycles, which is more than the Mini plug design. The OTG device with the B-plug inserted is called the B-device and by default assumes the role of peripheral. Get the best deals on USB Type Mini-B Male Cables. Alternate Mode dedicates some of the physical wires in the USB-C cable for direct device-to-host transmission of alternate data protocols. The data pins in the standard plugs are recessed compared to the power pins so that the device can power up before establishing a data connection. "[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 interface holds the connection in place by friction which makes it very easy for users to connect and disconnect. 2; and Table 5-3 "Resistances", pg. Found on digital cameras, external hard drives, USB hubs and other equipment; Used by USB 1.1 and 2.0 Toshiba calls it USB Sleep-and-Charge. Though not that common, A-A cables are used to connect USB devices with an A-style Female port to a PC or another USB device, and for data transfer between two computer systems. Devices can request higher currents and supply voltages from compliant hosts – up to 2 A at 5 V (for a power consumption of up to 10 W), and optionally up to 3 A or 5 A at either 12 V (36 W or 60 W) or 20 V (60 W or 100 W). The USB-C or USB Type-C connector is the newest USB connector on the market. This feature has also been implemented on some laptop docking stations allowing device charging even when no laptop is present. 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). [99], A variety of (non-USB) standards support charging devices faster than the USB battery-charging standard (USB-#BCS). USB-C devices also support power currents of 1.5 A and 3.0 A over the 5 V power bus in addition to baseline 900 mA; devices can either negotiate increased USB current through the configuration line or they can support the full Power Delivery specification using both BMC-coded configuration line and legacy BFSK-coded VBUS line. Only downstream facing ports provide power; this topology was chosen to easily prevent electrical overloads and damaged equipment. [83] On Acer Inc. and Packard Bell laptops, sleep-and-charge USB ports are marked with a non-standard symbol (the letters USB over a drawing of a battery); the feature is called Power-off USB. Known as "SuperSpeed", this A-style connector is commonly found on host controllers in computers and hubs, the A-style connector is a flat, rectangular interface. 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. The primary reason for this limit is the maximum allowed round-trip delay of about 1.5 μs. $15.95. The standard connectors were designed to be more robust than many past connectors. USB Type-A and Type-B Pin configurations in different sizes USB Type-B [13] Mini-B connectors are still supported, but are not On-The-Go-compliant;[14] the Mini-B USB connector was standard for transferring data to and from the early smartphones and PDAs. USB 2.0 provides for a maximum cable length of 5 meters (16 ft 5 in) for devices running at high speed (480 Mbit/s). The USB 3.0 standard does not directly specify a maximum cable length, requiring only that all cables meet an electrical specification: for copper cabling with AWG 26 wires the maximum practical length is 3 meters (9 ft 10 in).[40]. 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. ", "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? Adapters and cables with a USB-C receptacle are not allowed.[31]. Two types of mini USB connectors were developed; namely, USB mini A and USB mini B. ", "Deprecation of the Mini-A and Mini-AB Connectors", "ID Pin Resistance on Mini B-plugs and Micro B-plugs Increased to 1 Mohm", "Mobile phones to adopt new, smaller USB connector", "Micro-USB pinout and list of compatible smartphones and other devices", "Universal Serial Bus Micro-USB Cables and Connectors Specification to the USB 2.0 Specification, Revision 1.01", "OMTP Local Connectivity: Data Connectivity", "Universal phone charger standard approved—One-size-fits-all solution will dramatically cut waste and GHG emissions", "Commission welcomes new EU standards for common mobile phone charger", "Nice Micro-USB adapter Apple, now sell it everywhere", "Apple's Lightning to Micro-USB adapter now available in US, not just Europe anymore", "USB-C vs. USB 3.1: What's the difference? The Micro-USB interface is commonly found on chargers for mobile phones. A USB hub can help connect USB devices to computers with different types of connectors. You previously purchased this product. Battery Charging Specification 1.1 specifies that charging devices must dynamically limit bus power current draw during High Speed signaling;[51] 1.2 specifies that charging devices and ports must be designed to tolerate the higher ground voltage difference in High Speed signaling. [58] In all cases, both host-to-device and device-to-host configurations are supported. Dedicated charging ports can be found on USB power adapters to run attached devices and battery packs. See the USB On-The-Go connectors section below for a more detailed summary description. The Micro-AB receptacle is capable of accepting both Micro-A and Micro-B plugs, attached to any of the legal cables and adapters as defined in revision 1.01 of the Micro-USB specification. (2) 8-pin Mini-B plug (this strongly resembles the 8-pin Micro-B plug which often has only 5 pin positions occupied), The type-A plug. In its original specification, USB defined only two connector types: A and B. Most computers that are built today come with several USB ports, and USB is the interface of choice for most home and office peripherals including printers, cameras, modems, and portable storage devices. There is an extra pin compared to the standard USB connector, know as ID pin, which was introduced for further development of the standard. [81] Dell calls this feature PowerShare,[82] and it needs to be enabled in the BIOS. Orders placed during this period will be processed on #RETURN#. However, the USB 3.0 A-type has additional pins that are not found in the USB 2.0 & USB 1.1 A-Type. Cables with this connector are not backwards compatible with USB 2.0 or USB 1.1 devices. 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. PoweredUSB is a proprietary extension that adds four additional pins supplying up to 6 A at 5 V, 12 V, or 24 V. It is commonly used in point of sale systems to power peripherals such as barcode readers, credit card terminals, and printers. [79] On laptops, charging devices from the USB port when it is not being powered from AC drains the laptop battery; most laptops have a facility to stop charging if their own battery charge level gets too low. [47] Such a cable is non-standard, with the USB compliance specification stating that "use of a 'Y' cable (a cable with two A-plugs) is prohibited on any USB peripheral", meaning that "if a USB peripheral requires more power than allowed by the USB specification to which it is designed, then it must be self-powered. Check with the manufacturer before using an A-A cable for data transfer. This connector is designed to carry data and power in USB SuperSpeed applications. Whether it’s charging or connecting devices, or simply uploading data, you need to know which one to use. This is because USB is hot-swappable, and the connectors would be used more frequently, and perhaps with less care, than previous connectors. [citation needed] Examples include USB-powered keyboard lights, fans, mug coolers and heaters, battery chargers, miniature vacuum cleaners, and even miniature lava lamps. ", "Battery Charging Specification, Revision 1.2", "Battery Charging Specification, Revision 1.1", "Battery Charging v1.2 Spec and Adopters Agreement", "Minty Boost — The mysteries of Apple device charging", "Modify a cheap USB charger to feed an iPod, iPhone", "USB 3.0 SuperSpeed update to eliminate need for chargers", "USB 3.0 Promoter Group Announces Availability of USB Power Delivery Specification", USB Power Delivery v2.0 Specification Finalized - USB Gains Alternate Modes - AnandTech, "USB Future Specifications Industry Reviews", "USB-C charging: Universal or bust! The mini B plug by default has 5 pins, including an extra ID pin to support USB On-The-Go (OTG), which allows mobile devices and other peripherals to act as a USB host. Special $9.95. The USB 3-A and USB 3-B cables are identical to the USB-A and USB-B cables at the top of this article, except they are coloured blue inside to distinguish them. All Rights Reserved. The connectors the USB committee specifies support a number of USB's underlying goals, and reflect lessons learned from the many connectors the computer industry has used. [1] The USB-C plug however is reversible. [39] The USB 2.0 specification requires that cable delay be less than 5.2 ns/m (1.6 ns/ft), (192000 km/s) - which is close to the maximum achievable transmission speed for standard copper wire). Premium Avencore Mini-B USB 2.0 Coiled Cable Type A Male to Mini-B 5-Pin Male suitable for data transfer and device charging of all types of Mini-USB accessories. [35], The USB 1.1 standard specifies that a standard cable can have a maximum length of 5 meters (16 ft 5 in) with devices operating at full speed (12 Mbit/s), and a maximum length of 3 meters (9 ft 10 in) with devices operating at low speed (1.5 Mbit/s).[36][37][38]. [citation needed] The four high-speed lanes, two sideband pins, and‍—‌for dock, detachable device and permanent cable applications only‍—‌two USB 2.0 pins and one configuration pin can be used for Alternate Mode transmission. Developed to allow On-The-Go (OTG) peripheral devices such as smartphones and tablets to function as host devices for keyboards and mice; Superseded by USB Type-B Mini and Type-B micro connectors; USB Type-B Mini. A small device that provides voltage and current readouts for devices charged over USB. USB 3.0 A connectors are often blue in color to help identify them from previous versions. 49. Mini-B Is Widely Used Digital cameras typically have a Mini-B USB socket for the Mini-B/Type-A cable that plugs into the computer or hub. Free delivery and returns on eBay Plus items for Plus members. The B-style interface is squarish in shape, and has slightly beveled corners on the top ends of the connector. 2.0) has been released as part of the USB 3.1 suite. See Micro USB, USB Type C, USB 3.0 and USB. [52], Before the Battery Charging Specification was defined, there was no standardized way for the portable device to inquire how much current was available.

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