ASRock Fatal 1ty P67 Performance motherboard features Fatal 1ty Mouse Port & Fatal 1ty XFast USB (Universal Serial Bus) technology & etc. Fatal 1ty Mouse Port is a customizable technology for PC gamers that is a part of F-Stream. After plugging the USB (Universal Serial Bus) mouse into the Fatal 1ty Mouse Port & running F-Stream, gamers can use Fatal 1tys personal preferred mouse polling rate at 500 Hz. F-Stream also provides the flexibility for gamers to adjust the mouse polling rate from 125 Hz to 1000 Hz. This is helpful for professional gamers to experience smoother game play & faster response time to the mouse. Fatal 1ty XFast USB (Universal Serial Bus) technology redefines the new standard in high performance computing. Proving once again to be the pioneer in motherboard industry, Fatal 1ty XFast USB (Universal Serial Bus) series motherboards integrate with the latest XFast USB (Universal Serial Bus) technology which delivers the worlds fastest USB (Universal Serial Bus) data transfer speed. According to the below graph, it shows that the Fatal 1ty XFast USB (Universal Serial Bus) technology can even boost USB (Universal Serial Bus) 3.0 performance up to 302.99%!