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
2-Pin Screw Terminal Block (5.08mm Pitch)
2-position screw-clamp terminal block (5.08mm / 0.2in pitch) for solderless connection of stripped power wires to a PCB, common on power supplies, motor drivers, and DIY power distribution boards.
ATX12V 4-Pin CPU Power Connector (P4)
4-pin auxiliary +12V connector defined by the ATX12V specification, supplying dedicated power to the CPU voltage regulator on motherboards, the predecessor to the 8-pin EPS12V connector.
BNC Coaxial Connector
Bayonet-locking RF coaxial connector with 50 Ohm or 75 Ohm impedance. Used for oscilloscope probes, test equipment, composite video, CCTV, 10BASE2 Ethernet, and RF applications up to 4 GHz.
DC Barrel Power Jack (5.5x2.1mm)
Standard coaxial DC power jack (5.5mm outer / 2.1mm inner diameter, center-positive) used to supply external power to boards and adapters. Common breadboard-mount versions add a third normally-closed switch contact for power-source detection.
DIN-5 (180) MIDI Connector
5-pin 180-degree DIN connector used for MIDI (Musical Instrument Digital Interface) communication at 31.25 kBaud. Only pins 2, 4, 5 are used for MIDI; pins 1, 3 reserved.
DVI-D Dual Link Digital Video Connector
Dual-link DVI-D connector with all 24 digital signal pins populated for two TMDS links. Supports resolutions up to 2560x1600 at 60Hz by doubling the available bandwidth.
DVI-D Single Link Digital Video Connector
Digital-only DVI connector with 24 signal pins plus 1 ground blade for single-link TMDS signaling. Supports resolutions up to 1920x1200 at 60Hz (single link) or 2560x1600 (dual link).
DVI-I Dual Link Integrated (Digital + Analog) Video Connector
Full-featured 29-pin DVI connector with dual TMDS links and analog VGA signals. Supports digital resolutions up to 2560x1600 at 60Hz and analog VGA via passive adapter.
DVI-I Single Link Integrated (Digital + Analog) Video Connector
Integrated DVI connector carrying both digital TMDS and analog VGA signals. 24 digital pins plus 5 analog pins (4 analog contacts + 1 ground blade). Supports single-link resolutions up to 1920x1200 at 60Hz.
IDC 40-Pin ATA/IDE Ribbon Header
40-pin insulation-displacement (IDC) header for Parallel ATA (PATA/IDE) ribbon cables, carrying a 16-bit data bus and control signals between the host controller and hard disk / optical drives.
JST-PH 2-Pin Battery Connector (2.0mm Pitch)
2.0mm pitch, 2-position wire-to-board connector, the de-facto standard for single-cell LiPo/Li-Ion battery packs on hobbyist electronics and charge modules such as the TP4056.
Micro HDMI (Type D) 19-Pin Interface
Miniaturized 19-pin HDMI connector (Type D) with the same electrical signal assignment as HDMI Type-A, used on cameras, tablets, and single-board computers like the Raspberry Pi Zero and Pi 4.
Micro-USB 3.0 Type-B (10-Pin)
10-pin SuperSpeed USB 3.0 Micro-B connector combining a standard 5-pin USB 2.0 section with an additional 5-pin SuperSpeed section, commonly found on portable external hard drives.
Mini DisplayPort (mDP) 20-Pin Interface
Miniaturized 20-pin DisplayPort connector introduced by Apple and later standardized by VESA, electrically identical to full-size DisplayPort and reused as the physical connector for Thunderbolt 1 and 2.
Mini-USB Type-B 5-Pin Interface
Compact 5-pin USB 2.0 connector commonly found on older digital cameras, GPS devices, MP3 players, and game controllers. Succeeded by Micro-USB.
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