Qoltec 20W AC/DC Power Adapter 5V 4A 5.5x2.1mm Plug

Many 5V devices—routers, LED strips, CCTV cameras, and small electronics—depend on a stable power source, yet the original adapters often fail or get lost. The Qoltec 20W AC/DC Power Adapter steps in as a reliable replacement, delivering 5V at up to 4A through a standard 5.5x2.1mm barrel plug. It works with a wide range of equipment, so you can keep your devices running without hunting for an exact OEM part.

Who is it for

This adapter suits anyone who needs a dependable power supply for 5V devices. Whether you're a technician servicing network gear, a hobbyist building LED projects, or a homeowner replacing a worn-out camera adapter, this unit provides the right voltage and current with a common connector size. Its universal AC input also makes it suitable for use in different regions with the appropriate plug adapter.

Main features

• 20W output power with 5V DC and 4A current
• Standard 5.5mm outer / 2.1mm inner barrel plug, center positive
• Wide input voltage range: 100–240V AC, 50/60Hz
• EU plug (Type C/F) for direct connection in most European outlets
• 1.2m DC cable for flexible placement
• High efficiency Level VI, reducing energy waste
• Built-in over-voltage, over-current, and short-circuit protection
• Durable ABS plastic housing in black
• CE and RoHS certified for safety and environmental compliance

Specifications

• Product type: AC/DC power adapter
• Output power: 20W
• Output voltage: 5V DC
• Output current: 4A
• Input voltage: 100–240V AC
• Input frequency: 50/60Hz
• DC connector: barrel plug, 5.5mm outer, 2.1mm inner, center positive
• AC plug: EU (Type C/F)
• DC cable length: 1.2m
• Efficiency: Level VI
• Protection: over-voltage, over-current, short-circuit
• Operating temperature: 0°C to 40°C
• Storage temperature: -20°C to 85°C
• Certifications: CE, RoHS
• Housing material: ABS plastic
• Color: black

Tips

Before connecting, verify that your device requires 5V and draws no more than 4A. The barrel plug must match the size and polarity of your device's input—center positive is the most common, but always double-check. For devices with different connector sizes, use a suitable adapter tip. Keep the adapter in a well-ventilated area and avoid covering it during operation.