Features: Connector 1: DC 5.5x2.1mm female jack Connector 2: USB 2.0 A male jack Output: DC 5.5x2.1mm female jack or USB 2.0 A male jack SinLoon USB to DC adapter plugs are widely used for indoor power needs of various small digital devices at home. Please ensure the DC adapter size matches your device before purchasing. Power or charge USB 2.0 A male devices using a standard DC 5.5 x 2.1mm plug/adapter. Suitable for use with small appliances, mobile phones, MP3 players, MP4 players, digital photo frames, USB drives, USB-powered lights, USB chargers, and similar devices. The USB 2.0 A male port can also supply power to compatible DC devices. The DC 5.5x2.1mm interface is commonly used and convenient for powering devices such as DVD players, LCD monitors, fans, electronic gadgets, tablet computers, network cameras, massagers, desk lamps, audio equipment, wireless routers, and speakers that require 5V input. High-quality construction with nickel-plated connectors for enhanced durability. Resists corrosion and oxidation, ensuring long-term reliability and minimal signal loss. Includes one interchangeable USB A male to DC plug connector (5.5 x 2.1 mm). Simple plug-and-play design for easy use. Enables charging of compatible devices using a 5V power adapter with barrel connector. Note: Output voltage is 5V. Do not use with 12V power sources. Package Includes: 1 x Power Adapter Specifications: Material: Plastic Color: Black Size 1: Approx. 17.7 x 35.7 x 12 mm / 0.70 x 1.41 x 0.47 inch Size 2: Approx. 12.5 mm / 0.49 inch Size 3: Approx. 8 mm / 0.31 inch Note: 1. Please allow 1-2 mm variation due to manual measurement. Confirm dimensions before ordering. 2. Due to differences in monitor displays, actual product color may vary slightly from images shown.