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Connector Pinout Library

Interactive pinout diagrams for common connectors. Hover over pins to see signal details, or click to lock the selection.

RJ45

RJ45 Ethernet Connector

8 pins•data
Ethernet networkingPoE (Power over Ethernet)Telephone systems

DB9

DB9 Serial Connector (RS-232)

9 pins•data
Serial communicationIndustrial controlNetworking equipment

OBD-II

OBD-II Diagnostic Connector

16 pins•automotive
Vehicle diagnosticsEmissions testingECU programming

M12 4-Pin

M12 4-Pin Industrial Connector

4 pins•industrial
Industrial sensorsActuatorsFieldbus connections

USB-C

USB Type-C Connector

24 pins•data
SmartphonesLaptopsTablets

HDMI Type A

HDMI Type A Connector

19 pins•audio
Home TheaterPC MonitorsGaming Consoles

USB-A

USB Type-A Connector

4 pins•data
PC PeripheralsPhone and tablet chargersUSB flash drives

XLR 3-Pin

XLR 3-Pin Audio Connector

3 pins•audio
MicrophonesAudio InterfacesDMX Lighting

J1939 (Deutsch)

J1939 Deutsch 9-Pin Connector

9 pins•automotive
Heavy TrucksAgricultureConstruction Equipment

DisplayPort

DisplayPort Connector

20 pins•data
PC MonitorsGraphics CardsGaming monitors

VGA

VGA (DE-15) Video Connector

15 pins•data
Legacy computer monitorsProjectors and presentation systemsKVM switches

RJ11

RJ11 Telephone Connector (6P4C)

6 pins•data
Residential telephone linesBusiness phone systemsDSL internet modems

Mini-Fit Jr 4-Pin

Molex Mini-Fit Jr 4-Pin Power Connector

4 pins•power
PC power suppliesATX peripheral powerGraphics cards

DIN 5-Pin

DIN 5-Pin Connector (MIDI/Keyboard)

5 pins•data
MIDI instrumentsLegacy AT keyboardsVintage audio equipment

Anderson Powerpole

Anderson Powerpole PP15/PP30/PP45 Connector

2 pins•power
Ham radioRC vehiclesSolar power

RS-422 DB9

RS-422 DB9 Industrial Serial Connector

9 pins•industrial
Industrial automationPLC communicationMotion controllers

USB 3.0 Type B

USB 3.0 Type B Connector

9 pins•data
Printers and multifunction devicesScannersExternal hard drives

PS/2

Mini-DIN 6-Pin PS/2 Connector

6 pins•data
Desktop keyboardsDesktop miceKVM switches

Mini-USB

Mini-USB (Mini-B) Connector

5 pins•data
Digital camerasMP3 playersGPS navigation devices

Micro-USB

Micro-USB (Micro-B) Connector

5 pins•data
Android smartphones (pre-2016)Tablets and e-readersKindle devices

SATA Data

SATA Data Connector (7-Pin)

7 pins•data
Internal hard drives (HDD)Solid-state drives (SSD)Optical drives (DVD/Blu-ray)

Deutsch DT 2-Pin

Deutsch DT Series 2-Pin Connector

2 pins•automotive
Automotive sensorsLow-current sealed harnessesOff-road equipment

Deutsch DT 4-Pin

Deutsch DT Series 4-Pin Connector

4 pins•automotive
ECU harnessesActuator wiringServiceable sealed interfaces

Deutsch DTM 6-Pin

Deutsch DTM Series 6-Pin Connector

6 pins•automotive
Sensor breakout harnessesCompact motorsport harnessesSignal connectors

Deutsch DTP 4-Pin

Deutsch DTP Series 4-Pin Connector

4 pins•power
Power distributionAuxiliary circuitsHigh-current sealed harnesses

TE AMPSEAL 16

TE Connectivity AMPSEAL 16 Connector

16 pins•automotive
ECU connectorsControl modulesSealed electronics interfaces

JST-XH

JST-XH 4-Pin Connector Reference

4 pins•power
Battery balance leadsLow-current board harnessesSensor looms

JST-VH

JST-VH 4-Pin Connector Reference

4 pins•power
Control cabinetsBoard-to-wire powerIndustrial low-voltage harnesses

Molex Mini-Fit Jr

Molex Mini-Fit Jr 6-Circuit Connector

6 pins•power
Power suppliesModular power harnessesEmbedded electronics

M8 4-Pin

M8 A-Coded 4-Pin Connector

4 pins•industrial
Industrial sensorsActuatorsMachine I/O

M8 8-Pin

M8 A-Coded 8-Pin Connector

8 pins•industrial
Compact sensorsIndustrial I/OMachine interfaces

M12 5-Pin

M12 A-Coded 5-Pin Connector

5 pins•industrial
Industrial sensorsDistributed I/OActuator harnesses

Superseal 1.5 2-Pin

AMP Superseal 1.5 2-Pin Connector

2 pins•automotive
Automotive sensorsLighting harnessesLow-current sealed interfaces

XT60

XT60 Power Connector

2 pins•power
Battery leadsDrone power harnessesRobotics prototypes

XT90

XT90 Power Connector

2 pins•power
High-current battery leadsRobotics power harnessesPrototype EV systems

Coming Soon

DVIJST-XHDeutsch DTMIL-DTL-38999SATAATX 24-PinD-Sub 25Amphenol

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About Connector Pinouts

A pinout diagram shows the function and signal assignment of each pin in a connector. Understanding pinouts is essential for wiring, troubleshooting, and designing cable assemblies.

Why Use Interactive Diagrams?

  • Accuracy: Hover over pins to see exact signal names and descriptions
  • Clarity: Color-coded by signal type (power, ground, data)
  • Printable: Export clean diagrams for shop floor reference
Free Pinout Diagrams - 20+ Connectors | WireIt