USB/Connector/Ref/Index

• USB Connector Reference Index

  • Visual Reference

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    • Photo: public domain, via Wikimedia Commons

  • Overview

    • Quick reference guide to USB connector types documented in this knowledge base
    • Provides comparison of key specifications and links to detailed connector pages
    • Organized by connector family and generation

  • Connector Comparison Table

    • Standard Connectors

      • Connector	USB Versions	Max Data Rate	Power Delivery	Reversible	Common Use
        USB/Connector/Ref/USB-A	1.0-3.2	Up to 20 Gbps (3.2 Gen 2x2)	Up to 4.5W (3.0)	No	Host devices, flash drives
        USB/Connector/Ref/USB-B	1.0-3.2	Up to 20 Gbps (3.2 Gen 2x2)	Up to 4.5W (3.0)	No	Peripherals, printers
        USB/Connector/Ref/USB-C	2.0-4.0	Up to 40 Gbps (USB4)	Up to 240W (PD 3.1)	Yes	Modern devices, laptops

    • Mini/Micro Connectors

      • Connector	USB Versions	Max Data Rate	Power Delivery	Reversible	Common Use
        USB/Connector/Ref/USB-B Mini	1.0-2.0	Up to 480 Mbps	Up to 2.5W	No	Older cameras, MP3 players
        USB/Connector/Ref/USB-B Micro	2.0-3.0	Up to 5 Gbps (3.0)	Up to 4.5W (3.0)	No	Smartphones, tablets

    • Proprietary Connectors

      • Connector	USB Versions	Max Data Rate	Power Delivery	Reversible	Common Use
        USB/Connector/Ref/Lightning	2.0-3.0	Up to 5 Gbps (3.0)	Up to 12W	Yes	Apple devices (iPhone, iPad)

  • Connector Identification Guide

    • USB-A

      • Rectangular, non-reversible
      • 4 pins (USB 2.0) or 9 pins (USB 3.0+)
      • Blue interior indicates USB 3.0+
      • See: USB/Connector/Ref/USB-A

    • USB-B

      • Square with beveled corners, non-reversible
      • 4 pins (USB 2.0) or 9 pins (USB 3.0+)
      • Commonly found on printers and scanners
      • See: USB/Connector/Ref/USB-B

    • USB-C

      • Oval/rounded rectangle, fully reversible
      • 24 pins
      • Supports USB4, Thunderbolt, DisplayPort Alt Mode
      • See: USB/Connector/Ref/USB-C

    • USB-B Mini

      • Small trapezoidal shape, non-reversible
      • 5 pins
      • Largely superseded by Micro USB
      • See: USB/Connector/Ref/USB-B Mini

    • USB-B Micro

      • Small rectangular shape, non-reversible
      • 5 pins (USB 2.0) or 10 pins (USB 3.0)
      • Common on Android devices
      • See: USB/Connector/Ref/USB-B Micro

    • Lightning

      • Small, symmetrical, fully reversible
      • 8 pins
      • Apple proprietary connector
      • See: USB/Connector/Ref/Lightning

  • USB Version Reference

    • USB 1.0/1.1

      • Data Rate: 1.5 Mbps (Low-Speed) / 12 Mbps (Full-Speed)
      • Power: 2.5W (5V @ 500mA)
      • Connectors: USB-A, USB-B

    • USB 2.0

      • Data Rate: 480 Mbps (High-Speed)
      • Power: 2.5W (5V @ 500mA)
      • Connectors: USB-A, USB-B, USB-B Mini, USB-B Micro

    • USB 3.0 (USB 3.1 Gen 1, USB 3.2 Gen 1)

      • Data Rate: 5 Gbps (SuperSpeed)
      • Power: 4.5W (5V @ 900mA)
      • Connectors: USB-A, USB-B, USB-B Micro, USB-C

    • USB 3.1 Gen 2 (USB 3.2 Gen 2)

      • Data Rate: 10 Gbps (SuperSpeed+)
      • Power: Up to 100W with USB-C Power Delivery
      • Connectors: USB-A, USB-B, USB-C

    • USB 3.2 Gen 2x2

      • Data Rate: 20 Gbps
      • Power: Up to 100W with USB-C Power Delivery
      • Connectors: USB-C only

    • USB4

      • Data Rate: 20 Gbps (Gen 2) or 40 Gbps (Gen 3)
      • Power: Up to 240W with USB-C Power Delivery 3.1
      • Connectors: USB-C only

  • Related References

    • USB/Connector/Ref/USB-A
    • USB/Connector/Ref/USB-B
    • USB/Connector/Ref/USB-C
    • USB/Connector/Ref/USB-B Mini
    • USB/Connector/Ref/USB-B Micro
    • USB/Connector/Ref/Lightning
    • Adafruit/Understanding USB Type C - Cable Types Pitfalls etc
    • USB/How To/Identify Connector Type (when created)
    • USB/How To/Choose Correct Cable (when created)