... OS 3 >DVD-RW,WIFI ,1080P HDMI 4>2.0M webcam,2x4500mAh battery 15.6 Laptop with DVD HDMI WIN7 Intel ... of USB3Card Reader4-in-1 Media Card Reader(SD/MMC/MS/MS-pro);I/O3 of USB 2.01 VGA Port1 LAN ... Features 1. 4-in-1 Media Card Reader(SD/MMC/MS/MS-pro);2. Good heat dissipation, easier to maintain.3. N2800 ... RAM&320G HDD,Win7 OS,DVD-RW,WIFI&2.0M webcam