•One Ethernet connector
•Two rear IEEE 1394 connectors (optional)
•Two audio connectors on the front panel (microphone connector and headphone connector)
•VGA or DVI monitor connector (requires video card)
Expansion
•Two optical drive bays
•One drive bay for either a
•One
•One PCI Express x1 card slot
•One PCI Express x4 card slot (mechanical x16)
•Two PCI Express 2.0 x16 card slots
•Three hard disk drive bays
Power
•
•Automatic 50/60 Hz input frequency switching
•Advanced Configuration and Power Interface (ACPI) support
Security features
•Cover presence switch (also called intrusion switch, some models)
•Keyboard with fingerprint reader (some models)
•Support for the addition of an integrated cable lock (Kensington lock)
•Serial port and parallel port I/O control
•Startup sequence control
•Startup without diskette drive, keyboard, or mouse
•Support to enable or disable a device
•Trusted Platform Module (TPM)
•User and administrator passwords for BIOS access
Software programs, preinstalled
Your computer might come with preinstalled software programs. If it does, an operating system, device drivers to support
Operating system, preinstalled
•Microsoft Windows 7
•Microsoft Windows Vista
•Microsoft Windows XP Professional (preinstalled through downgrade rights in Windows 7 Professional, Windows 7 Ultimate, Windows Vista Business, or Windows Vista Ultimate)