---
product_id: 524205409
title: "Screw Terminal Hat for Arduino UNO, GPIO Screw Terminal Block Breakout Module with Horn Socket Connector, GPIO Expansion Board Breakout for Arduino UNo R3/R4"
brand: "geeekpi"
price: "€ 50.30"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/524205409-screw-terminal-hat-for-arduino-uno-gpio-screw-terminal-block
store_origin: CY
region: Cyprus
---

# 40-pin IDC flat ribbon connector 3.5mm terminal pitch Power-on LED indicator Screw Terminal Hat for Arduino UNO, GPIO Screw Terminal Block Breakout Module with Horn Socket Connector, GPIO Expansion Board Breakout for Arduino UNo R3/R4

**Brand:** geeekpi
**Price:** € 50.30
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your Arduino game with pro-grade connectivity and zero guesswork!

## Quick Answers

- **What is this?** Screw Terminal Hat for Arduino UNO, GPIO Screw Terminal Block Breakout Module with Horn Socket Connector, GPIO Expansion Board Breakout for Arduino UNo R3/R4 by geeekpi
- **How much does it cost?** € 50.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/524205409-screw-terminal-hat-for-arduino-uno-gpio-screw-terminal-block)

## Best For

- geeekpi enthusiasts

## Why This Product

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

## Key Features

- • **Instant Circuit Feedback:** Built-in power LED keeps you informed of your board’s live status at a glance.
- • **All-Pin Peripheral Access:** 40-pin IDC header enables effortless connection to all Arduino pins via flat ribbon cable.
- • **Effortless Firmware Updates:** Pre-soldered ICSP interface simplifies Arduino firmware burning without hassle.
- • **Robust Screw Terminal Design:** Supports 26AWG to 16AWG wires with durable M2 steel screws for secure connections.
- • **Seamless Arduino UNO R3/R4 Integration:** Tailored fit for flawless compatibility with Arduino UNO boards only.

## Overview

The GeeekPi Screw Terminal Hat is a precision-engineered GPIO expansion board designed exclusively for Arduino UNO R3 and R4. Featuring a 3.5mm pitch screw terminal block compatible with 26-16 AWG wires, a 40-pin IDC flat ribbon connector for full pin access, and a power-on LED indicator, it streamlines prototyping and peripheral integration. Its pre-soldered ICSP header accelerates firmware flashing, making it an essential upgrade for serious makers and engineers.

## Description

Description: This is a screw terminal expansion board specially designed for arduino UNO board expansion, through which you can quickly build your own circuit, and the pre-soldered ICSP interface makes it more convenient for you to burn arduino firmware.  The screw terminals are provided with good labels for easy identification.you can use a 40-pin FRC (Flat Ribbon Cable) connector cable to connect all Arduino Uno pins to peripherals. With power on LED indicating.Blue reset button on the side.   Features:  Easy to install Fit for Arduino UNO ONLY Screw Terminal Nice Label Marker Pre-soldered ICSP Pin Header 40Pin 2x20 2.54mm Horn Socket Connector onboard   Features:  Terminal block pitch 3.5mm/0.138" Wire size range 26AWG to 16AWG, strip length 5mm Screw M2 steel Pin header and cage copper.  Standard IDC40 pitch 0.1" header, you can use 40pin FRC(flat ribbon cable) connector cable connect all Arduino Uno pins to peripheral equipment.   Package Inlcudes:  1 x Screw Terminal Hat for Arduino UNO 4 x M2.5 Copper Pillar 4 x M2.5x6 Screw 4 x M2.5 nut  Technology Support:  https://wiki.52pi.com/index.php/Screw_Terminal_Hat_for_Arduino_UNO_SKU:_EP-0142

## Features

- Fit for Arduino UNO R4 / R3 ONLY
- Terminal block pitch 3.5mm/0.138", wire size range 26AWG to 16AWG, strip length 5mm, screw M2 steel, pin header and cage copper.
- Standard IDC40 pitch 0.1" header, you can use 40pin FRC(flat ribbon cable) connector cable connect all Arduino Uno pins to peripheral equipment.
- With power on LED indicating. red reset button on the side.
- Package Includes: 1 x Screw Terminal Hat for Arduino UNO;4 x M2.5 Copper Pillar;4 x M2.5x6 Screw;4 x M2.5 nut; NOTE: Arduino Uno module is Not Included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | GeeekPi |
| Item Weight | 70 g |
| Package Dimensions | 10.8 x 7.9 x 3 cm; 70 g |
| Item model number | GeeekPi-Screw-Terminal-Hat-UNO |
| Colour | red |
| Material | Steel, Copper, Plastic, Melamine |
| Item Package Quantity | 1 |
| Teeth Per Inch | 3.5 Millimetres |
| Plug profile | PCB Mount |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Item pitch:** 3.5 Millimetres
- **Connector type:** Screw with IDC40 pitch 0.1 inch header
- **Number of contacts:** 40
- **Mounting type:** PCB Mount
- **Material:** Steel, Copper, Plastic, Melamine
- **Colour:** red
- **Brand:** GeeekPi
- **Number of poles:** 40
- **Manufacturer:** GeeekPi

## Images

![Screw Terminal Hat for Arduino UNO, GPIO Screw Terminal Block Breakout Module with Horn Socket Connector, GPIO Expansion Board Breakout for Arduino UNo R3/R4 - Image 1](https://m.media-amazon.com/images/I/61sSgytRKrL.jpg)

## Frequently Bought Together

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-24*