11 January, 2010

Are you tired of USB 2? wait USB 3.0 is in the market now

USB (or Universal Serial Bus) is a 13-year old standard that was originally designed to connect then smart phones to PCs in the mid-90s coinvented by AJAY Bhatt (Indian Fellow). It later became the de facto standard for connecting any external devices. Thanks to USB's built-in power supply and relatively fast speeds. The then-unique one-cable approach sparked a revolution that spawned everything USB ranging from flash drives, hard drives, headsets, speakers, TV tuners to webcams. All these top at 12Mbps, at which speed is only good for mice and keyboards; so the official USB body upgraded the specs to USB 2.0, adding Hi-Speed USB mode operating at 480Mbps. As more applications moved on to wireless thereafter, the same group decided to follow the trend by cutting the wire in the latest Certified Wireless USB standard, completed in 2005. And now, we are currently in the pre-WUSB and SuperSpeed USB era.

now you may ask what is USB 3.0? In a nutshell, USB 3.0 promises the following:

  1. Higher transfer rates (up to 4.8 Gbps)
  2. Increased maximum bus power and increased device current draw to better accommodate power-hungry devices
  3. New power management features
  4. Full-duplex data transfers and support for new transfer types
  5. New connectors and cables for higher speed data transfer...although they are backwards compatible with USB 2.0 devices and computers.

No comments: