---
product_id: 400798280
title: "SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2"
brand: "shimano"
price: "7291 som"
currency: KGS
in_stock: true
reviews_count: 7
url: https://www.desertcart.kg/products/400798280-shimano-2-port-junction-ew-jc302-sd300-port-x-2
store_origin: KG
region: Kyrgyzstan
---

# Compact size Connects 4 points Firmware sync required SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2

**Brand:** shimano
**Price:** 7291 som
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Ride with Precision Engineering!

## Quick Answers

- **What is this?** SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2 by shimano
- **How much does it cost?** 7291 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/400798280-shimano-2-port-junction-ew-jc302-sd300-port-x-2)

## Best For

- shimano enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Sleek dimensions (4.33 x 2.2 x 1.46 inches) fit seamlessly into your bike setup.
- • **Firmware Harmony:** Ensure all Di2 components are in sync for optimal performance.
- • **Universal Appeal:** Designed for all cycling enthusiasts, regardless of gender.
- • **Seamless Connectivity:** Effortlessly connects to front and rear derailleurs, cockpit junction box, and battery mount.
- • **Lightweight Innovation:** Weighs only 0.02 kg, adding minimal bulk to your ride.

## Overview

The SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2 is a high-performance frame junction box that connects via SD50 E-tube wires to four critical points on your bicycle, ensuring seamless communication between components. With a compact design and lightweight build, it’s perfect for any cycling enthusiast looking to enhance their ride. Remember, all Di2 components must share the same firmware version to avoid malfunctions.

## Description

SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2

## Features

- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Shimano |
| UPC | 192790597188 |
| Item Package Dimensions L x W x H | 4.33 x 2.2 x 1.46 inches |
| Package Weight | 0.02 Kilograms |
| Item Dimensions  LxWxH | 7 x 4 x 1 inches |
| Brand Name | SHIMANO |
| Suggested Users | unisex |
| Part Number | IEWJC302 |

## Product Details

- **Brand:** SHIMANO
- **Color:** black
- **Material:** Aluminum
- **Case Material:** Aluminum
- **Mounting Type:** Handlebar Mount

## Images

![SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2 - Image 1](https://m.media-amazon.com/images/I/41wkeRM-cyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does its job
*by B***R on March 4, 2025*

Shimano got their money out of me... at least it works.

### ⭐⭐⭐⭐⭐ Fits Shimano Ew-Sd300 E-Tube Di2 Wire perfectly.
*by B***N on September 23, 2023*

This adapter accepts the "Shimano Ew-Sd300 E-Tube Di2 Wire", allowing for a connection to the battery via the unplugged front derailleur cable. Once connected, your shifters become "wired" and can be updated individually. You may also want to grab a TL-EW300 Cable Tool to make the process easier.

### ⭐⭐⭐⭐⭐ Does the Job
*by R***I on October 30, 2023*

Needed this junction in order to connect wired components to wireless shifters for firmware update on 12speed.Worked like a charm. Plugged in, hit “update” and we were off to the races.

## Frequently Bought Together

- SHIMANO 2 PORT JUNCTION EW JC302 SD300 PORT X 2
- SHIMANO 2Nd Gen E-Tube Di2 Wire
- SHIMANO Cycling Y7HE40000 TL-EW300 Cable Tool - Replacement Spare Parts for Bike

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**Shop now:** [https://www.desertcart.kg/products/400798280-shimano-2-port-junction-ew-jc302-sd300-port-x-2](https://www.desertcart.kg/products/400798280-shimano-2-port-junction-ew-jc302-sd300-port-x-2)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-23*