Lenovo 3120, 3122, 3128, 3126 manual Connectivity

•Audio line-in connector, audio line-out connector, and microphone connector on the rear panel

•Internal speaker (available in some models)

Connectivity

10/100/1000 Mbps integrated Ethernet controller

System management features

•Ability to store the power-on self-test (POST) hardware test results

•Advanced Configuration and Power Interface (ACPI)

•Automatic power-on startup

•Desktop Management Interface (DMI)

•Preboot Execution Environment (PXE)

•System Management (SM) Basic Input/Output System (BIOS) and SM software

•Wake on LAN (WOL)

•Windows Management Instrumentation (WMI) (WMI is the infrastructure for management data and operations on Windows operating systems.)

Input/Output (I/O) features

•9-pin serial port (one standard and one optional)

•25-pin parallel port (optional through your PCI card in some models)

•Ethernet connector

•PS/2 keyboard connector

•PS/2 mouse connector

•Six Universal Serial Bus (USB) 2.0 connectors (two on the front panel and four on the rear panel; there might also be two optional USB connectors on the rear panel)

•Two audio connectors on the front panel (headphone connector and microphone connector)

•Three audio connectors on the rear panel (audio line-in connector, audio line-out connector, and microphone connector)

•VGA monitor connector and DVI monitor connector

For more information, refer to “Locating connectors, controls, and indicators on the front of your computer” on page 7 and “Locating connectors and parts on the rear of your computer” on page 7.

Expansion

•One hard disk drive bay

•One optical drive bay

•One slim card reader drive bay

•One PCI card slot

•One PCI Express x16 graphics card slot

•Two PCI Express x1 card slots

Power supply

Your computer comes with the 240-watt automatic voltage-sensing power supply.

Security features

2ThinkCentre User Guide