Lenovo ThinkStation C20 (English) User Guide - Page 8
Audio subsystem, Connectivity, System management features, Input/Output I/O features, Expansion
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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 2 ThinkStation User Guide