---
product_id: 355410260
title: "20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield"
brand: "ocr"
price: "¥1397"
currency: JPY
in_stock: true
reviews_count: 5
category: "Ocr"
url: https://www.desertcart.jp/products/355410260-20pcs-2-54mm-breakaway-pcb-board-40pin-male-and-female
store_origin: JP
region: Japan
---

# 40-pin precision layout Reliable signal & current bridge Easily cut to custom lengths 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield

**Brand:** ocr
**Price:** ¥1397
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect smarter, build faster — your PCB’s best friend!

## Quick Answers

- **What is this?** 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield by ocr
- **How much does it cost?** ¥1397 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/355410260-20pcs-2-54mm-breakaway-pcb-board-40pin-male-and-female)

## Best For

- ocr enthusiasts

## Why This Product

- Trusted ocr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Gender Set:** Includes 10 male and 10 female headers for versatile, plug-and-play circuit connections.
- • **Customizable Length:** Breakaway design lets you tailor connector size on-demand—no waste, no hassle.
- • **Compact & Lightweight:** Slim 10.3cm x 1.1cm profile fits effortlessly into any electronics project setup.
- • **Precision 2.54mm Pitch:** Engineered for seamless Arduino and PCB integration with industry-standard spacing.
- • **Robust Signal Transmission:** Ensures stable current and data flow between isolated or blocked circuits.

## Overview

This 20-piece set of 2.54mm pitch, 40-pin male and female header connectors offers precision, flexibility, and reliable connectivity for Arduino shields and PCB projects. Designed for easy breakaway customization, these connectors facilitate stable signal and current transmission, making them an essential toolkit upgrade for electronics professionals and hobbyists alike.

## Description

20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield

Review: Not sure what to say, they're headers. They do what they do, and break apart easily. Fast delivery.
Review: The header worked well in my electronic project. Fit together is adequate.

## Features

- 【Size】40 pin of each male or female header connectors, with 2.54 mm/ 0.1 inch pin pitch. Single-row, straight connector.
- 【Cuttable】You can cut them, please score them with some cutting tool, and snap them off, they can be cut to arbitrary length if needed.
- 【Function】Acts as a bridge between the blocked or isolated circuits in the circuit, and assumes the task of current or signal transmission.
- 【Application】 Best choice for a good connector to connect PCB boards and integrated circuits. Very suitable for PCB circuit boards in electronics, electrical appliances, meters and so on, help you to solve the problem.
- 【Package Includes】Total 20pcs header connectors, includes 10pcs male headers and 10pcs female headers, enough to meet your needs without leaving idle materials.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MQ48T2V |
| Are batteries included? | No |
| Best Sellers Rank | #249,345 in Electronics ( See Top 100 in Electronics ) #498 in Audio & Video Adapters |
| Brand | OCR |
| Colour | Male and Female Header --20PCS |
| Customer Reviews | 4.5 4.5 out of 5 stars (293) |
| Date First Available | 23 October 2017 |
| Item Dimensions LxWxH | 10.3 x 1.1 x 0.1 Centimeters |
| Item Height | 0.1 Centimeters |
| Item Weight | 90.7 g |
| Item Width | 1.1 Centimeters |
| Item model number | dz-pz-01 |
| Manufacturer | Ocrtechci |
| Model number | dz-pz-01 |
| Net Quantity | 1.0 Count |
| Number of Memory Sticks | 20 |
| Product Dimensions | 10.3 x 1.1 x 0.1 cm; 90.72 g |

## Product Details

- **Brand:** OCR
- **Material:** Plastic, Metal
- **Number Of Circuits:** 40
- **UPC:** 704270440015
- **Manufacturer:** OCR

## Images

![20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 1](https://m.media-amazon.com/images/I/71pPGcNAZuL.jpg)

## Questions & Answers

**Q: what is the diameter of the pins?**
A: standard pin size .1 works flawless with the pin headers on ardunio

**Q: Can these be broken into different length sets?**
A: They can be broken to length, but it usually requires on pin to be sacrificed because it doesn't break cleanly. I recommend using a cutting tool rather than breaking by hand though.

**Q: Are pins on female suitable for thru-hole mounting on a pcb? what are the pin dimensions?**
A: I believe the female pins will work fine in printed circuit boards that have plated through holes, with proper soldering techniques.  These connectors appear to be the standard cut to length parts that you can adjust the number of pins by using an exacto knife to separated them.  Doing this however sacrifices one pin position.

**Q: What is the current rating on these? Will these be okay for 2 Amps?**
A: I doubt they can handle more than a breadboard - 500 mA.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***H on 20 January 2026*

Not sure what to say, they're headers. They do what they do, and break apart easily. Fast delivery.

### ⭐⭐⭐⭐⭐ Review
*by M***. on 31 July 2023*

The header worked well in my electronic project. Fit together is adequate.

### ⭐⭐⭐⭐⭐ Review
*by R***W on 30 June 2025*

Used these to interface to an Arduino. Changes can be made in the future if needed to acommodate wiring changes with new header without having to modify the Arduino. I keep some empty pins on the header to secure extra grip force when header is inserted into Arduino sockets.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.jp/products/355410260-20pcs-2-54mm-breakaway-pcb-board-40pin-male-and-female](https://www.desertcart.jp/products/355410260-20pcs-2-54mm-breakaway-pcb-board-40pin-male-and-female)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*