Pinouts & Pin References
for Connectors & Ports.
Pinout diagrams for USB-C, HDMI, DisplayPort, Ethernet RJ45, SATA, M.2, ATX & audio jacks.
All Boards, Chips & Connectors
Development platforms, microcontrollers, ICs and standard interfaces
USB 2.0 Type-A Connector & Receptacle
Standard 4-contact USB 2.0 Type-A connector. Supports High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) data transfer with 5V VBUS power delivery up to 500mA (2.5W).
OBD-II (SAE J1962) 16-Pin Vehicle Diagnostic Port
Standardized 16-pin diagnostic link connector (DLC) mandatory on all passenger vehicles in the US and Europe. Provides access to automotive bus communication including ISO 11898 High-Speed CAN, ISO 9141 K-Line, SAE J1850 PWM/VPW, and permanent +12V battery power.
JST-XH 4-Pin 2.54mm Wire-to-Board Connector
Standard 4-pin 2.54mm (0.1 inch) pitch wire-to-board polarized disconnectable connector. Universally utilized for 3D printer stepper motor wiring, endstops, I2C/UART interconnect cables, and 3S LiPo battery balancing ports with a 3A current rating.
SCART (EN 50049-1) 21-Pin Audio & Video Connector
Standardized 21-pin French/European analog audio and video connector (CENELEC EN 50049-1). Provides composite video, RGB analog video (Red, Green, Blue with fast blanking), stereo audio in/out, and aspect ratio switching signals for CRT televisions, VCRs, DVD players, and retro gaming consoles.
USB Type-C 24-Pin Interface
24-pin reversible, rotationally symmetrical interface for USB 2.0/3.x/4, Power Delivery (up to 240W EPR), DisplayPort Alternate Mode, and PCIe/Thunderbolt.
M.2 (NGFF) Key E Connector (Wi-Fi & Bluetooth)
Standard 75-position M.2 Key E edge connector interface (notch at pins 24-31) providing PCIe x1, USB 2.0, SDIO, UART, and I2S/PCM for wireless networking (Wi-Fi & Bluetooth) and CNVi companion modules.
M.2 (NGFF) Key B Connector (WWAN & SATA SSD)
Standard 75-position M.2 Key B edge connector interface (notch at pins 12-19) providing PCIe x2, SATA, USB 2.0/3.0, and SIM card (UIM) signals for cellular modems and legacy SATA SSDs.
HDMI Type-A 19-Pin Interface
Standard 19-pin interface for uncompressed digital audio and video transmission (TMDS / FRL), Consumer Electronics Control (CEC), and DDC/HDCP display communication.
M.2 (NGFF) Key M Connector (NVMe SSD)
Standard 75-position M.2 Key M edge connector interface (notch at pins 59-66) supporting PCIe 3.0/4.0/5.0 x4 lanes, SATA III, SMBus, and 3.3V power for high-performance NVMe Solid-State Drives.
USB Type-B Standard 4-Pin Interface
Standard 4-pin square USB Type-B female/male connector interface for printers, Arduino Uno, USB audio interfaces, and external peripheral devices.
3-Pin PC Fan Connector
Standard 3-pin motherboard fan connector with 0.1 inch (2.54mm) pitch for 12V DC cooling fans with Ground, +12V Power, and Tachometer speed feedback signal.
3.5mm TRS Audio Jack (3-Pole Stereo)
Standard 3.5mm (1/8 inch) TRS 3-pole stereo audio connector with Tip (Left Channel), Ring (Right Channel), and Sleeve (Ground).
USB 2.0 Internal 9-Pin Motherboard Header
Standard 9-pin (2x5 keyed) internal motherboard header supporting dual USB 2.0 front panel ports with +5V VBUS, Data- (D-), Data+ (D+), and Ground (GND).
DisplayPort (DP) 20-Pin Interface
Standard 20-pin interface for digital audio and video transmission (Main Link with up to 4 lanes), AUX channel for control/EDID, and Hot Plug Detect.
USB 3.0 Type-A SuperSpeed Interface
Standard 9-pin USB connector with blue color coding. Fully backward compatible with USB 2.0 (pins 1-4) with 5 additional SuperSpeed differential and ground lines (pins 5-9).
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