2 Chapter 1I/O ports Front Five USB 2.0 ports Headphone/speaker-out/line-out jack Microphone-in jack 9-in-1 media card reader — CompactFlash® (Type I and II), CF+™ Microdrive, MultiMediaCard(MMC), Reduced-Size MultiMediaCard (RS-MMC), Secure Digital™ (SD) Card, xD-PictureCard™, Memory Stick™, Memory Stick PRO™ Rear PS/2 keyboard port PS/2 mouse port Five audio jacks HDMI port eSATA port Four USB 2.0 ports Gigabit LAN port VGA/monitor portOperating system and software Operating system Windows 7 Home Premium x64 Windows 7 Home Premium X86 Windows 7 Home Basic X86, FreeDOS Linux LL95 Applications Acer eRecovery Management Acrobat Reader Acrobat Flash Player Arcade Deluxe Cyberlink Power Director McAfee Internet Security MyWinLocker Microsoft Works Nero 9 EssentialsPower supply 220-watts (115/230 V AC) PFC or non-PFC power supply Active PFC 220V for EMEA and China Non-PFC 110V and 220V with select switch. Active PFC 220V with Energy Star 5.0Dimension and weight Dimension (LxWxH) X3400: 367.8 x 100 x 281.5 mm (with bezel) X5400: 367.8 x 100 x 281.5 mm (with bezel)