Laptop Dell Inspiron 15R 5520 9770H1-SILVER Intel Core i7-3612QM (4 x 2.10GHz), Turbo Boost: 3.10GHz / (1 x 2GB) + (1 x 4GB) DDR3, 1600Mhz (2 slots) / 1TB SATA (5400rpm) / 12.7” DVD-RW SMT Double Layer 15.6" (39.6cm) HD WLED True-Life Display (1366x768) / AMD Radeon HD 7670M (Dedicated: 1024MB) with ATI Switchable Graphics Technology ; Intel HD Graphics 4000 ; WIN7 x64 : 4047MB / 1.0MP Integrated 1280x720 native HD Webcam + Digital mics (1) / FastAccess Facial Recognition ; Kengsington lock slot ; Set Admin Password ; Set System Password ; Set HDD Password ; Password Change ; Computrace Linux / 6 cell (48Wh) / 1 year / 2.74 kg / China