Specifications:

ALL-IN-ONE OS: Windows 7 Professional (32-bit/64-bit dual hotload) - User must make a one-time choice of hotload Memory: 4GB (4/0) DDR3 SDRAM Storage: 500GB SATA hard drive 7200RPM; Super-Multi drive; multi-in-one card reader Communications: Gigabit LAN 802.11b/g/n WLAN LCD: Integrated 20" wide Resolution: 1600 x 900 Aspect Ratio: 16:9 Response Time: 5ms - Intel H61 Express chipset - Two memory slots: upgradeable up to 8GB (one 4GB memory card in each slot) - Multi-in-one card reader supports optional Memory Stick Memory Stick PRO MultiMediaCard or SD (Secure Digital) card - Interface ports: DC-in RJ-45 LAN headphone microphone line-out COM port two PS/2 six USB 2.0 (two side four back) - Desktop and LCD combined - 135W power supply - USB keyboard and optical mouse - Silver-black chassis