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5.5x2.1mm Female to Male DC Power Adapter Cable | 5 Tip Sizes

5.5x2.1mm Female to Male DC Power Adapter Cable | 5 Tip Sizes

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Regular price $33.00 TWD
Regular price Sale price $33.00 TWD
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Short Product Description

Stop buying new power supplies for every device! Our5.5x2.1mm Female to Male DC Power Adapter Cableallows you to convert any standard 5.5x2.1mm power adapter to fit 5 different proprietary barrel sizes (including 2.5mm, 4.0x1.7mm, and 3.5x1.35mm). The flexible pigtail design reduces mechanical stress on your device's power port, preventing costly motherboard damage. Perfect for routers, CCTV cameras, and LED displays. Unsure which size you need?Sun Cheong Computer Co. Ltd.has over 20 years of IT expertise. Visit our Sham Shui Po physical store with your device for a free, instant test fit!

Key Features

  • Universal Conversion: Transforms the standard 5.5x2.1mm female input into 5 different male output sizes to fit proprietary electronics.
  • Flexible Strain Relief: The short pigtail cable design prevents rigid leverage, protecting your device's fragile internal DC power jack from breaking.
  • High Conductivity: Built with premium copper wiring to ensure stable power delivery without voltage drops or overheating.
  • Plug and Play: No soldering or splicing required. Simply push the adapters together for an instant, secure connection.
  • Broad Compatibility: Ideal for powering Wi-Fi routers, CCTV IP cameras, LED strip controllers, and DIY Arduino projects.
  • 5 Size Options: Available in 5.5x2.5mm, 4.0x1.7mm, 2.5x0.7mm, 4.8x1.7mm, and 3.5x1.35mm to cover almost all consumer electronics.

Full Product Description

The Ultimate Power Supply Money Saver

It is incredibly frustrating when you have a perfectly good 12V or 5V power adapter, but the barrel plug is just a millimeter too big or too small for your new device. Instead of spending money on a brand-new charger and adding to electronic waste, the DC Power Adapter Converter Cable is your simple, plug-and-play solution. It takes the industry-standard 5.5mm x 2.1mm male plug and instantly converts it to one of five specific male tip sizes, ensuring your electronics get the power they need.

Flexible Pigtail Design for Port Protection

Why choose a short cable over a solid, one-piece plastic adapter? Solid adapters stick out rigidly from your device. If the cable gets bumped or pulled, that rigid leverage can easily snap the internal DC jack right off your motherboard. Our flexible pigtail design absorbs accidental tugs and bends, significantly reducing the mechanical strain on your expensive routers, monitors, and CCTV cameras.

💡 Pro Tip from Our Technicians

"A crucial rule of thumb: This adapter cable only changes the physical shape of the plug; it DOES NOT change the voltage. Before plugging your 5.5x2.1mm power adapter into your device using this converter, you must ensure the voltage (V) matches exactly. Plugging a 12V adapter into a 5V device will destroy it! If you are struggling to measure the exact millimeter size of your device's power port, don't guess. Bring your device down to our Sham Shui Po store. Our team at Sun Cheong Computer Co. Ltd. will use digital calipers to measure the port and find the exact adapter you need on the spot."

Technical Specifications

Specification Details
Input Connector (Female) 5.5mm (Outer Diameter) x 2.1mm (Inner Diameter)
Option 1 (Male Output) 5.5mm x 2.5mm
Option 2 (Male Output) 4.0mm x 1.7mm
Option 3 (Male Output) 2.5mm x 0.7mm
Option 4 (Male Output) 4.8mm x 1.7mm
Option 5 (Male Output) 3.5mm x 1.35mm
Cable Style Flexible Pigtail Adapter
Supported Voltage 1V - 24V DC (Pass-through only)
Max Current Up to 3A (Depends on your power supply)

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

  • Does this cable change the voltage of my power adapter?No. This is a passive physical adapter cable. It only changes the size and shape of the plug. It does not convert or regulate voltage. You must ensure that the output voltage of your power adapter matches the input voltage required by your device.
  • How do I know which male DC tip size I need?DC barrel jacks are measured by their Outer Diameter (OD) and Inner Diameter (ID) in millimeters. You can use a digital caliper to measure your device's port. If you don't have a caliper, the safest option is to bring your device to our physical store in Hong Kong for a free test fit.
  • Why should I use a pigtail cable instead of a solid plastic adapter plug?Solid plastic adapters create a long, rigid lever sticking out of your device. If the cable is accidentally yanked, that leverage can easily break the DC port off your device's motherboard. The flexible wire on this pigtail adapter absorbs the shock, keeping your device safe.

Target Users / Applications

  • IT & Network Administrators: Reusing existing 12V power supplies for new Wi-Fi routers or network switches that use proprietary plug sizes.
  • CCTV Installers: Adapting standard 5.5x2.1mm power distribution boxes to fit specific IP camera power inputs.
  • Audio/Visual Technicians: Powering guitar pedals, LED video lights, and portable monitors on set.
  • DIY Electronics Makers: Adapting bench power supplies to test various microcontrollers and development boards.
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