Wireless Universal Serial Bus (Wireless USB)

What Does Wireless Universal Serial Bus (Wireless USB) Mean?

A Wireless USB (WUSB) is a Universal Serial Bus (USB) built on ultra-wideband (UWB) technology, which uses a radio frequency (RF) link, rather than cables, to transfer information between compatible USB devices.

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The USB Implementers Forum, Inc. (USB-IF) discourages the WUSB abbreviation and prefers to reference the term as Certified Wireless USB.

Techopedia Explains Wireless Universal Serial Bus (Wireless USB)

WUSB enables 127-point connections with compatible devices and has a signal radius of three to 10 meters, with signal strength ranging from 480 to 110 Mbps. Security is ensured via transmission encryption.

Key WUSB features include:

  • Plug and Play (PnP) compatibility and hot swapping with other devices
  • Compatibility with earlier USB versions. However, a Device Wire Adapter (DWA) or WUSB hub is used to to facilitate the wired to wireless transition, enabling the wireless use of USB 2.0 devices and WUSB host connectivity.
  • Host capability, which may be used with a PC through a Host Wire Adapter (HWA) that connects to a USB port or the MiniCard Interface
  • Support of a dual-role device (DRD), which works as a WUSB device, as well as a host with several features
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Margaret Rouse

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.