Price: US $1.7 - 2.3 / Piece
Brand Name: HONKA
Model Number: USB Cables AMtoAF
Country/Region: China
Post Date: Jun 01,2011

Product Description: usb cable extension

usb cable extensionusb cable extensionUSB Cable For Extending Useusb 2.0 extension cablelength:1.5m Connector types There are several types of USB connectors, including some that have been added while the specification progressed. The original USB specification detailed Standard-A and Standard-B plugs and receptacles. The first engineering change notice to the USB 2.0 specification added Mini-B plugs and receptacles.The data connectors in the Standard-A plug are actually recessed in the plug as compared to the outside power connectors. This permits the power to connect first which prevents data errors by allowing the device to power up first and then transfer the data. Some devices will operate in different modes depending on whether the data connection is made. This difference in connection can be exploited by inserting the connector only partially. For example, some battery-powered MP3 players switch into file transfer mode (and cannot play MP3 files) while a USB plug is fully inserted, but can be operated in MP3 playback mode using USB power by inserting the plug only part way so that the power slots make contact while the data slots do not. This enables those devices to be operated in MP3 playback mode while getting power from the cable.USB-AThe Standard-A type of USB plug is a flattened rectangle which inserts into a "downstream-port" receptacle on the USB host, or a hub, and carries both power and data. This plug is frequently seen on cables that are permanently attached to a device, such as one connecting a keyboard or mouse to the computer via usb connection.There are female-female connectors.USB-BA Standard-B plug—which has a square shape with bevelled exterior corners—typically plugs into an "upstream receptacle" on a device that uses a removable cable, e.g. a printer. A Type B plug delivers power in addition to carrying data. On some devices, the Type B receptacle has no data connections, being used solely for accepting power from the upstream device. This two-connector-type scheme (A/B) prevents a user from accidentally creating an electrical loop.Mini and MicroVarious connectors have been used for smaller devices such as PDAs, mobile phones or digital cameras. These include the now-deprecated (but standardized) Mini-A and the currently standard Mini-B, Micro-A, and Micro-B connectors. The Mini-A and Mini-B plugs are approximately 3 by 7 mm, while the Micro plugs have a similar width but approximately half the , enabling their integration into thinner portable devices.Mini-USB is often used by digital camcorders.The Micro-USB connector was announced by the on January 4, 2007 and the Mini-A and Mini-AB USB connectors were deprecated at the same time. As of February 2009, many currently available devices and cables still use Mini plugs, but the newer Micro connectors are being widely adopted. The thinner micro connectors are intended to replace the Mini plugs in new devices including and . The Micro plug design is rated for 10,000 connect-disconnect cycles which is significantly more than the Mini plug design. The Universal Serial Bus Micro-USB Cables and Connectors Specification details the mechanical characteristics of Micro-A plugs, Micro-AB receptacles, and Micro-B plugs and receptacles, along with a Standard-A receptacle to Micro-A plug adapter.The cellular phone carrier group, (OMTP), have recently endorsed Micro-USB as the standard connector for data and power on mobile devices. These include various types of battery chargers, allowing Micro-USB to be the single external cable link needed by some devices. As of January 30, 2009 Micro-USB has been accepted by almost all cell phone manufacturers as the standard charging port (including Apple, HTC, Motorola, Nokia, LG, Samsung, Sony Ericsson, Research In Motion) in the EU and most of the world. Worldwide conversion to the new cellphone charging standard is expected to be completed between 2010 to 2012.In addition, on 22 October 2009 the (ITU) announced that it had embraced micro-USB as the Universal Charger Solution 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."Good products always come from professional manufacturing, regorous quality control,and heart-devoted service. We are always on the way to do things better. Perfection may be not exist in this world,but we won`t give up to have a try!  If you have interest in our  products,please feel free to contact us . You are welcome to have any inquiry about the products you are interested in.We will ensure you high quality products with competitive price!

Supplier Details:

Shenzhen Hongkai Electronics Factory

Sales:Mr. ray lu

Contact Phone:86-755-84616379

Main Products:Computer Cables & Connectors

Business type:Manufacturer


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