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Compact black AC adapter with detachable tip kit and voltage selector switch

BASEUS

BASEUS 24W Multi-Voltage AC Adapter 3V-12V 2A 8 Tips 5.5x2.1mm

SKU CH-JS7S-5R1G9

Universal AC adapter delivers selectable 3 V to 12 V output up to 24 W with eight interchangeable tips for routers, cameras and LED strips

  • TypeAC Adapters
  • Powers devices from 3 V to 12 V with selectable voltage
  • Delivers up to 24 W at 2 A maximum current
  • Works worldwide on 100 V to 240 V mains input
  • Includes eight DC tips covering 5.5 × 2.1 mm and other sizes
  • Polarity is inner positive and outer negative for safe connection

Universal voltage adapter for low-power devices

This 24W AC adapter accepts 100V to 240V input at 50 or 60Hz and delivers selectable outputs from 3V to 12V at up to 2A. It suits appliances rated at 24W or less such as routers, cameras, LED strips and USB hubs. The centre-positive 5.5mm by 2.1mm barrel plug matches many common devices. Polarity reversal is not built in.

Thermals noise and power draw in normal use

The unit draws power only when a load is connected and runs silently with no moving parts. Heat output stays low because the maximum continuous output is 24W across the 3V to 12V range. Efficiency varies with the chosen voltage and the attached load. No fan or active cooling is present.

Bundled tips and switch key extend compatibility

Eight interchangeable DC plugs cover 5.5mm by 2.5mm, 4.8mm by 1.7mm, 4.0mm by 1.7mm, 3.5mm by 1.35mm, 3.0mm by 1.0mm, 2.5mm by 0.7mm and a micro-USB terminal. A physical switch key selects the output voltage. The package includes the adapter, the tip kit, the switch key and a manual. Buyers who need centre-negative polarity must source a separate reversal cable.

Highlights

  • Powers devices from 3 V to 12 V with selectable voltage
  • Delivers up to 24 W at 2 A maximum current
  • Works worldwide on 100 V to 240 V mains input
  • Includes eight DC tips covering 5.5 × 2.1 mm and other sizes
  • Polarity is inner positive and outer negative for safe connection

Specifications

TypeAC Adapters

Questions about this item

How do I select the right voltage and tip for my device with this adapter?

Set the switch key to match your device's required voltage from 3V to 12V, then choose the DC plug from the kit that fits — options include 5.5x2.1mm, 5.5x2.5mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.0mm, 2.5x0.7mm, or Micro USB. Confirm polarity is inner positive, outer negative before connecting.

What parts might wear out or need replacing over time?

The DC plug tips and the switch key are the only moving or detachable parts; repeated plugging can loosen the tip fit, and the voltage selector slider may stiffen with dust. The adapter body has no user-serviceable components inside.

At what point does the adapter hit its limit during continuous operation?

The 24W ceiling is reached first — drawing 2A at 12V or any combination exceeding 24W will trigger protection or cause voltage drop. Input handles 100V-240V at 50/60Hz without derating.

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