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Video Connectors Overview

Jul 12, 2024

Video Connectors Overview

VGA (Video Graphics Array)

  • Connector Type: DB-15 (technically DE15, commonly referred to as DB15)
  • Color: Unique blue color (according to PC System Design Guide standards)
  • Signal Type: Analog
    • No audio integration
    • Requires separate audio connection
  • Cable Length Limitation: Degrades beyond 5-10 meters
  • Usage: Common for connecting monitors
  • Visual Identifier: 15-pin connector

HDMI (High Definition Multimedia Interface)

  • Connector Type: Type A (19-pin)
  • Signal Type: Digital
    • Integrates both video and audio signals
  • Cable Length Limitation: Around 20 meters before experiencing dropouts
  • Usage: Widely used for connecting modern video output devices
  • Visual Identifier: Proprietary 19-pin connector

DisplayPort

  • Signal Type: Digital
    • Supports packetized video and audio signals
  • Types:
    • Standard DisplayPort
      • Visual Identifier: Hooks and release mechanism
    • Mini DisplayPort
  • Compatibility: Passively compatible with HDMI
    • Can use a cable with DisplayPort on one side and HDMI on the other
  • Usage: Common in modern video adapters

DVI (Digital Visual Interface)

  • Types:
    • DVI-A (analog)
    • DVI-D (digital)
    • DVI-I (integrated - both analog and digital)
  • Signal Support:
    • Single Link
      • Throughput: 3.7 Gbps
      • Supports HD at 60 FPS
    • Dual Link
      • Double throughput of Single Link
      • Supports HD at 85 FPS
  • Audio: Video connection only, no audio
  • Usage: Various video displays
  • Visual Identifier: Multiple pin configurations depending on type

Key Identifiers

  • Recognize connectors on the back of video adapters:
    • VGA: 15-pin blue connector
    • HDMI: 19-pin proprietary connector
    • DisplayPort: Locking hooks and release mechanism
    • DVI: Varies; examine pin layout and link type

Now, you should be able to identify different video connectors and their respective cables. This understanding is crucial for setting up and troubleshooting video displays and systems.