Kouwell External USB 2.0 Hub 4 Ports Pack Size: 1 pack Minimum Bulk Purchase: 1 x 1 pack (1 total) USB has been designed to allow many devices to be connected in a very easy way to a PC or MAC. Most new PC's have USB, but plug-in cards can add USB Ports to older machines. The use of this hub enables a single USB connection to be expanded to as many as 4 connections. What is USB 2.0? USB specification 2.0 (or USB Hi-Speed) is the next generation peripheral connection for personal computers. It is intended as an upgrade for USB 1.1. The new standard not only provides additional bandwidth for multimedia and storage applications but also offers plug-and-play capability and full backward compatibility for USB 1.1. What are the advantages of USB 2.0? USB 2.0 is 40 times faster than USB 1.1, broadening the range of external peripherals that can be used on a computer. Even with multiple high-speed peripherals connected to a USB 2.0 bus, the system will perform at full speed. The new specification also inherits USB's plug and play anmd hot-swapping capabilities as well as providing backward compatibility for USB 1.1 hardware, allowing existing users to upgrade seamlessly. Features: Standard USB interface Support up to 127 devices though daisy-chaining Requires existing USB connection Supports hot-swap peripherals Supports High and Low speed devices Plug and Play USB v1.1 and USB v2.0 compliant Plug and Play capability with external peripherals. Weight: 1.00 Kg