---
product_id: 281118114
title: "OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield"
brand: "ocr"
price: "₩36006"
currency: KRW
in_stock: false
reviews_count: 5
url: https://www.desertcart.kr/products/281118114-ocr-20pcs-2-54mm-breakaway-pcb-board-40pin-male-female
store_origin: KR
region: South Korea
---

# 2.54mm pitch precision 40-pin connectivity Male & female breakaway headers OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield

**Brand:** ocr
**Price:** ₩36006
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Connect smarter, build faster, and never miss a beat!

## Quick Answers

- **What is this?** OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield by ocr
- **How much does it cost?** ₩36006 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/281118114-ocr-20pcs-2-54mm-breakaway-pcb-board-40pin-male-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 Headers:** Male and female connectors for ultimate compatibility
- • **Breakaway Flexibility:** Customize pin count without hassle
- • **Precision 2.54mm Pitch:** Engineered for seamless Arduino shield integration
- • **Versatile 40-Pin Layout:** Ample connection points for complex projects
- • **Durable Fiberglass Build:** Reliable, lightweight, and long-lasting performance

## Overview

This 20-piece set of 2.54mm pitch, 40-pin male and female breakaway header connectors offers flexible, durable, and precise interfacing solutions for Arduino shields and other PCB projects. Crafted from fiberglass and plastic, these single-row straight headers enable easy customization and reliable connections, making them a must-have for any serious maker or electronics professional.

## Description

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

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

## Features

- Pitch: 2.54mm.
- Number of pins: 40pin
- Gender of connector: male
- Type of row: Single row
- Type of connector: straight

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MQ48T2V |
| ASIN  | B01MQ48T2V |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #5,230 in Computers ( See Top 100 in Computers ) #41 in Single-Board Computers |
| Color | Male and Female Header --20PCS |
| Customer Reviews | 4.5 4.5 out of 5 stars (291) |
| Customer reviews | 4.5 4.5 out of 5 stars (291) |
| Date First Available | 23 October 2017 |
| Date First Available  | 23 October 2017 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 20 |
| Item Weight | 90.7 g |
| Item model number | dz-pz-01 |
| Item model number  | dz-pz-01 |
| Manufacturer | Ocrtechci |
| Manufacturer  | Ocrtechci |
| Material | Fiberglass, Plastic |
| Measurement System | Metric |
| Part number | dz-pz-01 |
| Product Dimensions | 10.3 x 1.1 x 0.1 cm; 90.72 g |
| Product Dimensions  | 10.3 x 1.1 x 0.1 cm; 90.72 g |
| Switch Type | 40 way |

## Product Details

- **Brand:** OCR
- **Material:** Fiberglass, Plastic
- **Phase type:** single-phase or three-phase
- **UPC:** 704270440015
- **Manufacturer:** Ocrtechci

## Images

![OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 1](https://m.media-amazon.com/images/I/619cVd1YE1L.jpg)
![OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 2](https://m.media-amazon.com/images/I/61I-s7cO1OL.jpg)
![OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 3](https://m.media-amazon.com/images/I/61pE307jjwL.jpg)
![OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 4](https://m.media-amazon.com/images/I/61wmTx428+L.jpg)
![OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Image 5](https://m.media-amazon.com/images/I/71b1xA0gTHL.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 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.

### ⭐⭐⭐⭐ Review
*by A***R on 7 February 2025*

Female side does not breakaway cleanly as they are not pre-scored. You will lose a pin in the process. Scoring yourself helps, but not ideal. Male side works as intended.

## Frequently Bought Together

- OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield
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**Shop now:** [https://www.desertcart.kr/products/281118114-ocr-20pcs-2-54mm-breakaway-pcb-board-40pin-male-female](https://www.desertcart.kr/products/281118114-ocr-20pcs-2-54mm-breakaway-pcb-board-40pin-male-female)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-06*