SAMSUNG Laptop RF Series Intel Core i7 2nd Gen 2630QM (2.00GHz) 4GB Memory 500GB HDD NVIDIA GeForce GT 540M w/ NVIDIA Optimus 15.6" Windows 7 Home Premium 64-bit RF511-S02 - Newegg.com
Samsung NP-RF511-S03 - Review 2011 - PCMag UK
Samsung - NP-RF511-SD4BR - Notebook Samsung NP-RF511 Intel Core i5-2450M (2.50GHz) 6GB 1TB 15.6" LED DVD-RW Windows 7 Home Premium 64 Wi-Fi N Bluetooth WebCam HDMI Preto - MicroSafe