Lenovo ThinkCentre M91p User Manual page 17

Input/Output (I/O) features
• 9-pin serial port (one standard and one optional)
• Eight Universal Serial Bus (USB) connectors (two on the front panel and six on the rear panel)
• One Ethernet connector
• One DisplayPort connector
• One VGA monitor connector
• One Personal System/2 (PS/2) keyboard connector (optional)
• One PS/2 mouse connector (optional)
• Three audio connectors on the rear panel (audio line-in connector, audio line-out connector, and
microphone connector)
• Two audio connectors on the front panel (microphone connector and headphone connector)
For more information, see "Locating connectors on the front of your computer" on page 7 and "Locating
connectors on the rear of your computer" on page 8.
Expansion
• One hard disk drive bay
• One optical drive bay
• Two PCI card slots
• One PCI Express x1 card slot
• One PCI Express x16 graphics card slot
Power supply
Your computer comes with 240-watt automatic voltage-sensing power supply.
Security features
• Computrace Agent software embedded in firmware
• Cover presence switch (also called intrusion switch)
• Ability to enable or disable a device
• Ability to enable and disable USB connectors individually
• Keyboard with fingerprint reader (shipped with some models)
• Power-on password (POP), administrator password, and hard disk drive password to deter unauthorized
use of your computer
• Startup sequence control
• Startup without keyboard or mouse
• Support for an integrated cable lock (Kensington lock)
• Trusted Platform Module (TPM)
For more information, see Chapter 4 "Security" on page 25.
Preinstalled software programs
Your computer is preinstalled with software programs to help you work more easily and securely. For more
information, see "Software overview" on page 5.
Preinstalled operating system
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Chapter 1 Product overview
3