Synergy 21 DC Barrel Jack to Plug Adapter 2.1 mm to 2.5 mm Black

This Synergy 21 adapter converts a DC barrel jack (female) with 2.1 mm inner diameter to a DC barrel plug (male) with 2.5 mm inner diameter, allowing you to connect power supplies with a 2.1 mm plug to devices that require a 2.5 mm jack. The adapter is straight, center positive, and rated for up to 30V DC and 5A. Its compact black plastic housing with nickel-plated brass contacts ensures reliable power transmission.

Advantages

Enables compatibility between different DC barrel connector sizes without replacing your power supply. Simple plug-and-play design, durable construction, and pass-through polarity maintain correct voltage orientation.

Suitable for

• Power supplies with 5.5 mm OD / 2.1 mm ID male plug
• Devices requiring 5.5 mm OD / 2.5 mm ID female jack
• Converting plug sizes for LED strips, routers, cameras, and other electronics

Key specifications

• Adapter Type: DC Barrel Connector Adapter
• Input Connector: DC Barrel Jack (Female) – 2.1 mm ID, 5.5 mm OD
• Output Connector: DC Barrel Plug (Male) – 2.5 mm ID, 5.5 mm OD
• Polarity: Center Positive (Pass-through)
• Max Voltage: 30V DC
• Max Current: 5A
• Housing Material: Plastic
• Contact Material: Nickel-plated brass
• Color: Black
• Form Factor: Straight

Recommendations

Ensure your power supply output matches the voltage and current requirements of your device. This adapter does not convert voltage or current; it only changes the connector size.