A DC barrel jack adapter cable that converts a 3.5/1.3 mm or 3.8/1.1 mm DC plug to the standard 5.5/2.1 mm DC barrel jack format. Internal spring contacts accommodate outer diameters from 3.5 mm to 3.8 mm, making it versatile across a range of small-barrel DC connectors.

Key Features

• Wide Compatibility – Fits 3.5–3.8 mm OD / 1.1–1.3 mm ID DC plugs via spring contacts
• Standard Output – Converts to 5.5/2.1 mm DC barrel jack (the most common DC connector size)
• Simple Adapter – Inline cable design, no soldering required

Ideal For

• Connecting small-barrel DC devices to standard 5.5/2.1 mm power supplies
• Adapting solar panels with small DC plugs to charger boards
• Any project requiring DC barrel jack size conversion

Package Contents

• 1× DC Jack Adapter Cable (3.5/1.3 mm to 5.5/2.1 mm)