Configurations Model E-panel AM2700 Series Display 27" (1366*768) Processor Support LGA 775 ,Intel?Core 2 Duo/Pentium?D/Pentium?4/Celeron?D Socket 775 Fsb 800MHz Chipset P4M900 Memory 2 DDR slot up to 4GB HardDisk Supports standard 2 x 3.5 inch SATA-2 (RAID) Optical Drives CD-ROM / DVD / COMBO Graphics PCI-E I/O Ports one DC connector,eight usb 2.0 Ports,one lan Port,two COM Ports,two PS/2 Ports,one microphone Port,one earphone Port,One speaker box Port;1* SD/MMC/MS card reader IEEE 1394 1 TV MINI PCI Multi-System/DVB-T (OPTIONAL) Infrared control Yes (remote control on/off) Audio 2 * 2W speaker Networking 100/1000M Keyboard/Mouse 107 keyboard / optical mouse Electrical 250W,Auto-switch 100-240V