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If you meant Raspberry Pi 40-pin GPIO (2x20, 2.54mm pitch) headers, these are the best fits:
Raspberry Pi 2x20 (40-pin) GPIO headers
- Standard 2x20 male header (great for Pi Zero or any board needing a through-hole GPIO header): Raspberry Pi GPIO Male Header - 2x20 ($1.55)
- Keyed/polarised boxed (shrouded) 2x20 for ribbon-cable style connections: Raspberry Pi GPIO Shrouded Header - 2x20 ($2.15)
- Stacking/extra-tall 2x20 female for HAT stacking/clearance:
- Low-profile HAT headers:
- Through-hole short female: GPIO Header for Raspberry Pi HAT - 2x20 Short Female Header ($4.20)
- SMT short female: SMT GPIO Header for Raspberry Pi HAT - 2x20 Short Female Header ($3.90)
- Extra reach/clearance female headers (extended height options):
Single-row “40-pin” breakaway strips (not 2x20)
If you meant one row of 40 pins (common for Arduino/prototyping), these are 2.54mm pitch breakaway strips:
- Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Black ($3.75)
- Longer pins: 40 Pin Break Away Male Header- Long Straight-10 Pcs ($4.75)
- Right-angle: 40 Pin Break Away Male Header- Right Angle-10 Pcs ($3.75)
- Single-row female strip: 40 Pin Female Header Strip ($1.55)
Related (if you’re extending the Pi’s 40-pin header)
- 40-pin GPIO extender cable (2x20 to 2x20): 40 Pin GPIO Extension Cable for any 2x20 Pin Raspberry Pi - 150mm / 6 long ($7.00)
- Breakout/extension kit: GPIO Kit for Raspberry Pi Model B+ ($5.85)
(For completeness, if you meant jumper shunts rather than headers: 40 Pin Dual In-Line (DIL) / Jumpers ($2.30))
Showing 21-40 of 100 products
Little Bird Breakout Board for XBee Module
A simple breakout board for XBee modules that brings all 20 pins out to standard 0.1″ (2.54 mm) dual-row headers. The 0.5″ spacing between header rows makes it breadboard DIP-friendly for easy prototyping. Key Features All 20 Pins Broken Out – Full access to every XBee pin 0.1″ Header Spacing...
Pico Break Away Headers Kit
A pre-cut header kit sized for the Raspberry Pi Pico. Includes two 20-pin strips for the main GPIO connections and one 3-pin strip for the debug header — no need to snap headers to size yourself. Specifications Pin Style: Square, straight Pin Spacing: 2.54 mm (0.1″) Pin Length: 11.5 mm Pac...
Crimp Pins for Female Housing Pins(PH2.54)
A pack of 50 crimp pins for 2.54 mm (0.1″) pitch female housing connectors. Use these pins with a crimping tool and compatible housings to create custom cables that mate with standard 2.54 mm male header pins. Specifications Pitch – 2.54 mm (0.1″) Type – Female crimp pin for DuPont-style hous...
150mm Plug to Plug Jumper Leads - 40 Piece
A pack of 40 male-to-male (plug-to-plug) jumper leads in assorted colours, each 150 mm long. The flexible leads have 0.1" (2.54 mm) header pins on both ends, making them ideal for breadboard prototyping and connecting to PCB headers on Arduino, Raspberry Pi, and other development boards. Specifi...
Adafruit MCP9600 I2C Thermocouple Amplifier - K, J, T, N, S, E, B and R Type T
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The Adafruit MCP9600 I2C Thermocouple Amplifier handles all the analogue complexity of thermocouple measurement for you. Simply connect your thermocouple, wire up I2C, and read accurate temperature data from virtually any thermocouple type — K, J, T, N, S, E, B, and R types are all supported. Th...
Adafruit Universal Thermocouple Amplifier MAX31856 Breakout
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The Adafruit Universal Thermocouple Amplifier MAX31856 Breakout reads temperature from virtually any thermocouple type — K, J, N, R, S, T, E, or B — with 0.0078125°C resolution and a measurement range of -210°C to +1800°C. It handles cold-junction compensation, linearisation, and fault detection ...
Adafruit MCP9601 (MCP96L01) I2C Thermocouple Amplifier
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The Adafruit MCP9601 (MCP96L01) I2C Thermocouple Amplifier handles all the analogue complexity of thermocouple measurement over a simple I2C interface. Connect your thermocouple, wire up I2C (or use the solderless STEMMA QT connector), and read accurate temperature data from K, J, T, N, S, E, B, ...
Enviro + Air Quality for Raspberry Pi
Monitor your world with Enviro and Enviro + Air Quality for Raspberry Pi! There's a whole bunch of fancy environmental sensors on these boards, and a gorgeous little full-colour LCD to display your data. They're the perfect way to get started with citizen science and environmental monitoring! ...
Adafruit TS3USB30 1 to 2 USB Switch
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The Adafruit TS3USB30 is a 1-to-2 USB switch breakout board that lets you connect one of two USB peripheral devices to a single USB host port. Based on the TI TS3USB30, it handles high-bandwidth USB 2.0 connections up to 480 Mbps — ideal when you need to switch between two USB devices without usi...
PicoProbe PCB kit
Turn your Raspberry Pi Pico into a debug probe This PCB is designed to turn a Pico into a nice debug probe using the PicoProbe software. The kit provides everything you need to turn a Raspberry Pi Pico into a debug probe (Raspberry Pi Pico not included): The Picoprobe-PCB 1x cortex-M SWD 10pin h...
SparkFun GPS-RTK Dead Reckoning pHAT for Raspberry Pi
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The SparkFun GPS-RTK Dead Reckoning pHAT brings high-precision GNSS positioning with automotive dead reckoning to the Raspberry Pi. Built around the u-blox ZED-F9R module, it fuses GNSS measurements with an integrated 3D IMU (accelerometer and gyroscope), wheel ticks, and a vehicle dynamics model...
Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Black
A pack of 10 black straight male pin header strips, each with 40 pins at standard 2.54 mm (0.1") spacing. These single-row headers are compatible with solderless breadboards, perforated prototyping PCBs, female headers, and pre-crimped jumper wires. Each strip can be easily snapped into smaller ...
Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Green
A pack of 10 green straight male pin header strips, each with 40 pins at standard 2.54 mm (0.1") spacing. These single-row headers are compatible with solderless breadboards, perforated prototyping PCBs, female headers, and pre-crimped jumper wires. Each strip can be easily snapped into smaller ...
Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Red
A pack of 10 red straight male pin header strips, each with 40 pins at standard 2.54 mm (0.1") spacing. These single-row headers are compatible with solderless breadboards, perforated prototyping PCBs, female headers, and pre-crimped jumper wires. Each strip can be easily snapped into smaller se...
DFRobot Fermion BMI323 6DOF IMU Sensor
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Built around the Bosch BMI323, this compact Fermion module combines a 3-axis accelerometer and a 3-axis gyroscope on a 16 mm × 16 mm board. It provides high-rate acceleration and angular velocity data over I²C for embedded motion sensing, wearables, robotics, battery-powered IoT nodes and compact...
Header - 10-pin Female (PTH, 0.1)
A standard 10-pin female header with 0.1" (2.54 mm) pitch, designed for through-hole soldering. Mates with standard 10-pin male headers for board-to-board connections, breakout boards, and prototyping. Specifications Pin Count – 10 (1×10) Pitch – 0.1" (2.54 mm) Mounting – Through-hole (PTH) ...
Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Yellow
A pack of 10 yellow straight male pin header strips, each with 40 pins at standard 2.54 mm (0.1") spacing. These single-row headers are compatible with solderless breadboards, perforated prototyping PCBs, female headers, and pre-crimped jumper wires. Each strip can be easily snapped into smaller...
Arduino Male Pin Headers | 0.1 (2.54 mm) Straight Blue
A pack of 10 blue straight male pin header strips, each with 40 pins at standard 2.54 mm (0.1") spacing. These single-row headers are compatible with solderless breadboards, perforated prototyping PCBs, female headers, and pre-crimped jumper wires. Each strip can be easily snapped into smaller s...
Stackable Header - 8 Pin
An 8-pin female header with extra-long legs, designed for stacking Arduino shields. The extended pins pass through to the board below, allowing multiple shields to be stacked on a single Arduino. Pins are spaced at standard 0.1″ (2.54mm) pitch. Specifications Pin Count – 8 pins, single row Pi...
Pins (header), 12 pins, 0.1 inch (2.54 mm) spacing
A single-row male pin header strip with 12 pins at standard 0.1" (2.54 mm) spacing. Designed for soldering into PCBs and breakout boards, these headers provide reliable connections for breadboarding, jumper wires, and board-to-board stacking. Specifications Pins – 12 Pitch – 0.1" (2.54 mm) R...