--- product_id: 39697840 title: "20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield" brand: "ocr" price: "¥2557" currency: JPY in_stock: true reviews_count: 9 category: "Ocr" url: https://www.desertcart.jp/products/39697840-20pcs-pin-header-2-54mm-40pin-male-and-female-header store_origin: JP region: Japan --- # 2.54mm pitch precision Reliable male & female connectivity Easily cut to custom lengths 20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield **Brand:** ocr **Price:** ¥2557 **Availability:** ✅ In Stock ## Summary > 🔌 Connect like a pro — never miss a beat in your next build! ## Quick Answers - **What is this?** 20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield by ocr - **How much does it cost?** ¥2557 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/39697840-20pcs-pin-header-2-54mm-40pin-male-and-female-header) ## 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 + 10 female headers for versatile circuit bridging - • **Customizable Lengths:** Breakaway design lets you tailor pin strips exactly to your project needs - • **Bulk Pack Convenience:** 20-piece assortment keeps your prototyping workflow uninterrupted - • **Precision 2.54mm Pin Pitch:** Industry-standard spacing for seamless Arduino & PCB integration - • **Robust Signal Transmission:** Ensures stable current and data flow across isolated circuits ## Overview This 20-piece set of 2.54mm pitch single-row pin headers includes 10 male and 10 female connectors, designed for easy breakaway customization. Perfect for Arduino shields and PCB projects, these headers provide reliable signal and current transmission, making them an essential toolkit staple for electronics professionals and hobbyists alike. ## Description OCR 20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield: desertcart.com: Industrial & Scientific Review: Good supply of all the most common headers - It's a good assortment of headers, pins and sockets. This is for boards, not so much for cable-ends, though one could improvise a cable end connector with these. The only trouble with these is that for the female socket strips, cutting it down to size requires crushing and sanding away one of the sockets, but that's no fault of the product, it's just the way it works, and all similar products are the same way. They are cheap enough that I don't care, but I've seen people complain about it. I've used these in several projects and fixes, and they have performed wonderfully. Review: Headers for your breakout boards - Not sure what to say, they're headers. They do what they do, and break apart easily. Fast delivery. ## 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 | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 439 Reviews | ## Product Details - **Brand:** OCR - **Material:** Plastic, Metal - **Number Of Circuits:** 40 - **UPC:** 704270440015 - **Manufacturer:** OCR ## Images ![20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield - Image 1](https://m.media-amazon.com/images/I/71pPGcNAZuL.jpg) ![20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield - Image 2](https://m.media-amazon.com/images/I/61I-s7cO1OL.jpg) ![20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield - Image 3](https://m.media-amazon.com/images/I/61pE307jjwL.jpg) ![20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield - Image 4](https://m.media-amazon.com/images/I/619cVd1YE1L.jpg) ![20PCS Pin Header, 2.54mm 40Pin Male and Female Header Pins Breakaway PCB Board Connector Single Row Pin Headers Strip for Arduino Shield - Image 5](https://m.media-amazon.com/images/I/61wmTx428+L.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 ### ⭐⭐⭐⭐⭐ Good supply of all the most common headers *by J***T on August 4, 2018* It's a good assortment of headers, pins and sockets. This is for boards, not so much for cable-ends, though one could improvise a cable end connector with these. The only trouble with these is that for the female socket strips, cutting it down to size requires crushing and sanding away one of the sockets, but that's no fault of the product, it's just the way it works, and all similar products are the same way. They are cheap enough that I don't care, but I've seen people complain about it. I've used these in several projects and fixes, and they have performed wonderfully. ### ⭐⭐⭐⭐⭐ Headers for your breakout boards *by J***H on January 20, 2026* Not sure what to say, they're headers. They do what they do, and break apart easily. Fast delivery. ### ⭐⭐⭐⭐⭐ This is as advertised and looks good. *by J***. on February 24, 2024* These work well with my various Arduino processors. ## Frequently Bought Together - OCR 20PCS 2.54mm Breakaway PCB Board 40Pin Male and Female Header Connector for Arduino Shield - Tnuocke 18PCS 5mm High Knob Vertical Micro Mini Slide Switchs,3 Pin 2 Position 1P2T SPDT Toggle Switches Panel Mount AC 125V 2A SS12D10-G5 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/39697840-20pcs-pin-header-2-54mm-40pin-male-and-female-header](https://www.desertcart.jp/products/39697840-20pcs-pin-header-2-54mm-40pin-male-and-female-header) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-09*