Audio subsystem

Integrated high-definition (HD) audio

Microphone connector and headphone connector on the front panel

Eight audio connectors on the rear panel

Audio line-in connector

Audio line-out front speaker connector

Audio line-out rear speaker connector

Audio line-out side speaker connector

Audio line-out subwoofer/center speaker connector

Microphone connector

Optical Sony Philips Digital Interconnect Format (SPDIF) in connector

Optical SPDIF out connector

Internal speakers

Connectivity

• One or two 10/100/1000 Mbps Ethernet controller(s)

System management features

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

Advanced Configuration and Power Interface (ACPI) support

Alert Standard Format (ASF) 2.0

Automatic power-on startup

Preboot Execution Environment (PXE)

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

Wake on LAN

Wake on Ring (in the Setup Utility program, this feature is called Serial Port Ring Detect for an external modem)

Windows Management Instrumentation (WMI)

Input/Output (I/O) features

9-pin serial port (available on some models)

10 USB (Universal Serial Bus) connectors

Eight audio connectors on the rear panel

One external Serial Advanced Technology Attachment (eSATA) connector

One or two Ethernet connector(s)

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

Two IEEE 1394 connectors (available on some models)

For more information about I/O features, see “Locating connectors on the rear of your computer” on page 7.

Expansion

One optical drive bay

One PCI Express x1 card slot

2ThinkStation User Guide

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Lenovo 4271, 4272, 4269 Audio subsystem, Connectivity, System management features, Input/Output I/O features, Expansion

4262, 4263, 4266, 4264, 4265 specifications

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