Microsoft Windows 7 Professional 64bit; 350 Watt 80 PLUS Power Supply; Intel DG41RQ mATX Motherboard with HD Audio; Intel Pentium Dual Core E5400 2.7 2M Processor; 2GB DDR2 PC6400 800MHz Memory (2GB x 1); 500GB 7200RPM 3G SATA II Hard Drive; 22X DVDRW SATA Drive; 15-in-1 Card Reader Supports SD, MMC/MMC Plus/MMC Mobile, MS/MS Pro, SM, CF I/II, MD; Integrated Intel GMA 4500 Graphics; Integrated Gigabit Network Adapter; Microsoft Comfort Curve Keyboard 2000 USB; Cyber Acoustics 2016 2-Piece Speakers; CA Internet Security Suite Plus 2010 30-day Trial