Power supply Adapter 9V 2A

High-Capacity 9V 2A DC Output: Efficiently converts household AC power into a continuous, regulated 9V DC output at up to 2A (18W max), providing double the current capacity of standard 1A adapters.

Standard 5.5mm x 2.1mm Center-Positive Plug: Features a universal DC barrel jack connector for plug-and-play compatibility with Arduino development boards, sensors, audio equipment, and small electronics.

Universal AC Mains Input Compatibility: Operates seamlessly across standard grid electricity (100V–240V AC, 50/60Hz), making it versatile for diverse workplace setup demands.

Compact Wall-Plug Form Factor: Space-saving plastic enclosure plugs directly into wall outlets or power strips without blocking adjacent sockets.

Quiet & Energy-Efficient Performance: Solid-state fan-less design offers 100% silent operation with low idle standby power loss and smooth voltage ripple control.

Built-in Circuit Safeguards: Integrated circuit protection shields connected devices against short circuits, over-current, and input voltage surges.

Housing & Casing Style: Fully insulated, flame-retardant ABS plastic wall-mount enclosure designed for safe indoor operation.

Contact & Connector Style: EU standard 2-pin AC wall plug with an integrated DC output cable terminating in a center-positive 5.5mm x 2.1mm barrel plug.

Technical Specifications:

Input Voltage: AC 100V – 240V (50/60Hz).

Output Voltage: DC 9V.

Output Current: 0A – 2A Max (2000mA).

Rated Power: 18W.

Plug Polarity: Center-Positive (+ inside, - outside).

Cooling: Passive air convection via enclosed housing.

Color: Black.

Usage Advice: Size continuous loads to 80% of total maximum rated capacity (1.6A / 14.4W) for long-term operational stability. Verify device polarity before powering up.

Maintenance: Keep adapter casing clean and clear of dust build-up. Designed for indoor desktop and bench setups; keep away from water and humid environments.

Essential High-Power Development Adapter: Position as the ideal upgrade power supply for feature-heavy Arduino projects utilizing motor shields, relays, TFT touch displays, and Wi-Fi modules that draw more current than standard 1A adapters can deliver.

Highlight 2A Current Capacity & Universal Fit: Emphasize its 18W high-current headroom paired with the ubiquitous $5.5\text{mm} \times 2.1\text{mm}$ barrel jack, replacing underpowered wall adapters easily.

Recommended Cross-Sell Add-ons: Pair with Arduino Power Supply Adapter 9V 1A, Power Supply Adapter 5V 3A, Power Supply Adapter 12V 2A, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Power Supply Adapter collection page under high-capacity 9V power adapters.