<b>Ultrabay</b><br>Dial up your laptop's performance with this interchangeable bay that can be instantly swapped out for dual graphics capability, increased storage space or an additional fan for cooling.<br><br><b>Intelligent Touchpad</b><br>Optimized for the new Windows 8 interface, the intelligent touchpad enables easy scroll, zoom and rotate functions for comfortable control of your laptop.<br><br><b>NVIDIA® GeForce® Graphics with Optional Dual Graphics Card Support</b><br>Standard with up to NVIDIA® GeForce® GT 750M 2GB graphics, this laptop lets you add a second card with NVIDIA® SLI technology (sold separately) using the Ultrabay to generate up to 1.6 times more frame rate performance.<br><br><b>Premium JBL® Speakers with Dolby® Home Theater® v4</b><br>Increased audio clarity and maximized volume output without distortion — enjoy a crisp, clear immersive surround sound experience over built-in JBL®-designed stereo speakers or your own headphones.<br><br><b>S/PDIF Support</b><br>