Model: AS5551-2805, OS: Windows 7 Home Premium (64-bit) Software: Microsoft Works (full version), Microsoft Office Home & Student 2007 (60-day trial) Processor: AMD Athlon II Dual-Core Processor P320 (1MB L2 cache, 2.10GHz) Memory: 4GB (2/2/0) DDR3 1066 SDRAM Storage: 500GB hard drive, 5400RPM; integrated Super-Multi drive; 5-in-1 card reader TFT Display: Acer CineCrystal 15.6" (1366 x 768) Graphics: Integrated ATI Radeon HD 4250 Communications: 802.11b/g/n WLAN, gigabit LAN, webcam Availability: Early June - AMD M880G chipset - User upgradeable up to 8GB (one 4GB memory card in two of three slots)1 - 5-in-1 card reader supports optional MultiMediaCard, Secure Digital, Memory Stick, Memory Stick PRO or xD-Picture Card - Interface ports: DC-in, RJ-45 LAN, VGA, headphones/speaker/line-out, microphone, HDMI (High-Definition Multimedia Interface) with HDCP (high-bandwidth digital-content protection), three USB 2.0 - 15.0" (381.0mm) W x 10.0" (253.0mm) D x 1.0" ? 1.3? (25.0mm ? 34.0mm) H / 5.7 lb. (2.6kg) - Six-cell lithium ion battery: up to 3.20 hours life depending on configuration and usage - Mesh-black chassis - One-year limited warranty