Quantum 2 Pcs Gamepad Vibration PC Games USB Game Pad Joystick Dual Shock Quantum Game Pad Specification: · USB connectivity for real plug and control · Digital mode & Analog mode for powerful game operations · Slow motion & Turbo fire analog vibration controller · 8-way digital direction & LED analog indicator · Eight fire buttons & clear function key · Operating Instructions : plug n play for Win 7 also CD for Win Vista & older versions(Recommended install software in Windows 7 also for full function support) · Available for game port · 8-way direction button · Ergonomic shape for easy handling · High sensitivity of motions · Easy to use · Never Before So Less price Minimum System Requirements PC & Compatible Machine USB Port 133 MHZ CPU or above 16 MB RAM or above Win 98/ME/2000/XP/VISTA/7 Dirextx 7.0 or above For best results system should be more than double the configuration listed above A-TekGamePad4.jpg image by sherelockhommes QuantumGamePad1.jpg image by sherelockhommes QuantumGamePad1.jpg image by sherelockhommes (Kindly Note Vibration works with supportable games only like i tried for Need For Speed Carbon it is working on my Vaio few older games are supporting vibration. So vibration can be checked in devices & printers panel of your windows) Also Note: There are lower & higher priced models of Games Pads are also available kindly click on the link below to visit my Game Pad category at my shop.