Model No.: RSW-0105 Specifications: * Slim and rectangle shape, easy to carry * 4 extension USB 2.0 Hi-speed ports * Fully compliant with USB 2.0/1.1 specification * Full data transfer speed is 480MB/s * 4 LED lights indicating working status of each port * Over-current protection for each port * Plug and play * Connect with computer by attached USB cable * Supports Windows98/98SE/2000/ME/XP, Linux 2.4 and above, Mac OS 8.5 and above