Lenovo ThinkCentre M73 User Manual page 15

Input/Output (I/O) features
• 9-pin serial port (one standard and one optional)
• One Ethernet connector
• One DisplayPort connector
• One VGA monitor connector
• One Personal System/2 (PS/2) keyboard connector
• One PS/2 mouse connector
• Four Universal Serial Bus (USB) 2.0 connectors (two on the front panel and two on the rear panel)
• Two USB 3.0 connectors on the rear panel
• 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, controls, and indicators on the front of your computer" on
page 9 and "Locating connectors on the rear of your computer" on page 10.
Expansion
• One hard disk drive bay
• One optical drive bay
• One secondary solid-state drive bay (optional)
• One slim card reader drive bay
• One PCI Express x16 graphics card slot
• Two PCI Express x1 card slots
For more information, see "Locating internal drives" on page 14.
Power supply
Your computer comes with 240-watt automatic voltage-sensing power supply.
Security features
• Ability to enable or disable a device
• Ability to enable and disable USB connectors individually
• Computrace Agent software embedded in firmware
• Cover presence switch (also called intrusion switch) (available in some models)
• Keyboard with fingerprint reader (shipped with some models)
• Power-on password (POP), administrator password, and hard disk password to deter unauthorized
use of your computer
• Startup sequence control
• Startup without keyboard or mouse
• Support for a Kensington-style cable lock
• Support for a padlock
For more information, see Chapter 4 "Security" on page 31.
Preinstalled software programs
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Chapter 1 Product overview
3