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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 81-100 of 100 products
2-Pin Female JST XH-Style Cable (15cm)
This 15cm (6") cable features a 2-pin female JST XH-style connector with 2.5mm pitch. The two 26AWG conductors (red and black) are twisted together to reduce electrical noise, with unterminated ends that can be cut to length for your application. The 2.5mm pitch is close enough to 0.1" (2.54mm) ...
SparkFun Breadboard Power Supply 5V/3.3V
A through-hole soldering kit that builds into a compact breadboard power supply. It accepts a DC barrel jack input and outputs a selectable 5 V or 3.3 V regulated supply via 0.1" (2.54 mm) header pins that plug directly into breadboard power rails. The board features an on/off switch, a 3.3 V / ...
SparkFun XBee Explorer Dongle
This is the SparkFun XBee Explorer Dongle unit for the Digi XBee module line. With the XBee Explorer Dongle you can plug the unit directly into your USB port and have it act as a gateway between your computer and the XBee. No cables needed! This unit works with all XBee modules including the Seri...
SparkFun XBee Explorer USB
This is a simple to use, USB to serial base unit for the Digi XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Explorer, attach a mini USB cable, and you will have direct access to the serial and programm...
Wixel Programmable USB Wireless Module (Fully Assembled)
The Pololu Wixel is a general-purpose programmable module featuring a 2.4 GHz radio and USB. You can write your own software or load precompiled, open-source apps onto the TI CC2511F32 microcontroller at the heart of the Wixel, turning it into a wireless serial link, data logger, or whateve...
Arduino Screwless Terminal Shield
The Arduino Screwless Terminal Shield breaks out all Arduino Uno-compatible header pins to spring-loaded push-in terminal blocks. Press the lever, insert your wire, and release — no screwdriver needed. The shield stacks with standard Arduino shields, so you can add additional boards on top. Key ...
Adafruit LIS3DH Triple-Axis Accelerometer (+-2g/4g/8g/16g)
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The Adafruit LIS3DH is a popular, low-power triple-axis accelerometer breakout packed with features typically found only on higher-end sensors. With selectable measurement ranges, multiple interface options, and built-in motion detection, it's one of the most versatile accelerometers available at...
Jumper - 2 Pin
A standard 2-pin jumper shunt used to create an electrical connection between two adjacent pin headers. Commonly used to configure settings on development boards, select operating modes, or bridge header pins on PCBs. Specifications Type – 2-pin jumper (shunt) Pitch – 2.54 mm (0.1") standard ...
Female Housing Pin(PH2.54)-4P
A 4-pin female housing connector with a standard 2.54 mm (0.1") pitch. Use these to create custom cables that mate with 0.1"-spaced header pins on breakout boards, sensors, and development boards. Note: Does not include metal crimp pins, which are required and sold separately. Specifications ...
TCA9548A I2C Multiplexer
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The TCA9548A 1-to-8 I2C multiplexer solves the common problem of needing multiple I2C devices with the same address on a single bus. It acts as a gatekeeper, routing I2C traffic to any of its eight downstream channels on command. Simply write a single byte to the multiplexer's I2C address (defau...
Pololu Basic 2-Channel SPDT Relay Carrier with 5VDC Relays (Assembled)
The Pololu Basic 2-Channel SPDT Relay Carrier provides simple, independent control of two single-pole, double-throw (SPDT) relay switches from low-voltage, low-current control signals. This assembled version comes ready to use with relays, terminal blocks, and header pins pre-soldered. Each rela...
Zumo Robot for Arduino, v1.2 (Assembled with 75:1 HP Motors)
Overview A Zumo robot preparing to attack a Parallax SumoBot. Zumo Robot for Arduino, v1.2. This Zumo robot is a low-profile tracked robot platform intended for use with an Arduino (or compatible device, such as an A-Star 32U4 Prime) as its main controller. It measures less than 10 ...
Jumper Wires 9 F/F (10 Pack)
These 23 cm (9″) female-to-female jumper wires are a prototyping essential. Use them to connect between male headers on Arduino boards, IO shields, sensors, and breadboards. Multiple wires sit neatly side by side on standard 0.1″ (2.54 mm) pitch headers. Key Features Female-to-Female – Connect...
Pololu RC Switch with Small Low-Side MOSFET
The Pololu RC Switch with Small Low-Side MOSFET converts standard hobby RC receiver outputs into simple on/off signals. It measures incoming RC pulse widths against a configurable threshold to control an integrated MOSFET, allowing you to drive small loads like LEDs, relays, or motors directly fr...
20mm Coin Cell Breakout w/On-Off Switch (CR2032)
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A sewable breakout board with a CR2032 coin cell battery holder, built-in on/off switch, and 0.1" pitch breakout pins. The board provides two ground pins, one switched power pin, and one always-on power pin — giving you flexibility in how you manage power in your project. Also available: version...
20mm Coin Cell Breakout Board (CR2032)
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A simple sewable breakout board with a CR2032 coin cell battery holder pre-soldered on and 0.1" pitch breakout pins for easy connection. Ideal for powering very low-current projects or adding a battery backup circuit to a real-time clock or similar module. Key Features CR2032 Coin Cell Holder ...
12mm Coin Cell Breakout w/ On-Off Switch
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A breakout board with a CR1220 coin cell battery holder, an on/off switch, and 0.1″ pitch breakout pins. Ideal for powering very low-current projects or providing switchable battery backup for a real-time clock (RTC) module. The board breaks out four pins: two ground pins, one switched power pin...
12mm Coin Cell Breakout Board
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A simple breakout board with a CR1220 coin cell battery holder pre-soldered and broken out to 0.1″ pitch pins. Ideal for powering very low-current projects or providing battery backup for a real-time clock (RTC) module. Comes fully assembled and tested, with a stick of 0.1″ header included so yo...
USB Micro-B Breakout Board
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This breakout board gives you easy access to all 5 pins of a USB Micro-B connector via standard 0.1" header pins. It's a simple way to add USB 5V power to a project, interface with a USB-capable microcontroller, or prototype custom USB connections on a breadboard. The board uses a micro-AB conne...
1 pin dual-female jumper wire 100mm 50pcs pack
A pack of 50 individual jumper wires, each 100 mm long with female connectors on both ends (female-to-female). These single-pin wires are ideal for making point-to-point connections on breadboards, between header pins, and with development boards. Key Features Connector Type – Female-to-female...
