for Shimano DI2 EC300 USB-C Charger Adapter | 4-Pin to Type-C Converter for 12-Speed Electronic Derailleurs | Compact Emergency Bike Charging Cable for Road/Mountain Bikes

• 🔌 Type-C Charging Convenience: Convert your for Shimano 4-pin charging interface to Type-C, enabling universal compatibility with modern Type-C cables, power banks, or laptops for on-the-go charging.
• 🔋 Emergency Power Supply: Use any Type-C power source (e.g., phone charger, portable battery) to charge your DI2 electronic transmission system during rides, ensuring no downtime.
• 🚴 Perfect Compatibility: Designed for Shimano 12-speed EW-EC300 and DI2 systems (R9200/R8100/R7100 series), seamlessly integrates with official accessories.
• 📏 Compact & Portable: Ultra-small design (0.4in/10mm connector) for easy storage in bike bags or pockets. Ideal for travel, races, or long-distance cycling.
• ⚡ Stable & Safe: Reinforced 4-pin interface ensures secure connection and charging stability. Built-in safeguards prevent overheating and short circuits.

Product Description: Never get stranded with a dead electronic derailleur! This compact for Shimano EC300 to Type-C adapter lets you charge your 12-speed DI2 system using any Type-C cable or power source. Whether you’re on a mountain trail or a road race, stay powered up effortlessly. Key Features: Dual Charging Flexibility: Charge your for Shimano DI2 system via a standard Type-C cable or use a power bank to inject emergency power into the transmission mid-ride. Rugged Design: Durable, heat-resistant housing withstands vibrations and harsh weather, perfect for off-road adventures. Plug-and-Play: No tools required—connect the 4-pin end to your derailleur and the Type-C end to any compatible charger. Use Cases: Emergency charging during long rides or bikepacking trips. Simplify your gear by replacing bulky OEM chargers with universal Type-C cables. Backup solution for competitive cyclists and touring enthusiasts. Note: Not an official Shimano product, but rigorously tested for compatibility and safety. Compatible with 5V2A input/output.