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Short 15cm cable with 7.9x5.5mm DC female jack and USB-C female port

Manw

Manw 15cm DC 7.9×5.5mm Female to USB-C Female Adapter Cable

SKU CH-H0Y2-ED6BS

Converts a 7.9×5.5mm DC barrel jack into a USB-C female port using a compact 15cm cable

  • Converts legacy 7.9×5.5mm barrel power to USB-C female for modern devices
  • Precision 7.9×5.5mm jack prevents loose contact and intermittent power failure
  • Compact 15cm cable reduces clutter in embedded and desktop setups
  • Thick copper wiring minimises voltage drop for stable continuous output
  • Plug-and-play design works with most 7.9×5.5mm power bricks and USB-C appliances

Repurposing legacy barrel adapters

This 15 cm adapter converts a 7.9×5.5 mm DC barrel output into a USB-C female port, letting users power USB-C devices from existing laptop bricks. The short cable reduces clutter in embedded builds, DIY projects and fixed desktop setups. Plug-and-play operation requires no drivers and works with most IBM/Lenovo-style 7.9×5.5 mm power supplies and standard USB-C appliances. It is not suited for users who need power delivery negotiation or variable voltage profiles beyond what the source brick provides.

Thermal and electrical behaviour

Thick copper inner wiring minimises voltage drop so connected mini PCs, routers, Type-C notebooks and portable gadgets receive stable continuous power. The durable outer jacket resists abrasion and repeated bending during bench testing or permanent installation. No active cooling or fan is present, so heat dissipation relies solely on the cable’s materials and the source adapter’s own thermal design. Buyers who require monitored thermal throttling or active temperature reporting will not find those features here.

Sustained-load stability

The precision-sized 7.9×5.5 mm jack maintains a tight plug fit, preventing loose contact and intermittent power failure during extended operation. Continuous power delivery is limited by the rating of the attached barrel adapter, not by the cable itself. Users expecting automatic current limiting, over-voltage protection or smart power negotiation must rely on the source brick and the USB-C device to provide those safeguards.

Highlights

  • Converts legacy 7.9×5.5mm barrel power to USB-C female for modern devices
  • Precision 7.9×5.5mm jack prevents loose contact and intermittent power failure
  • Compact 15cm cable reduces clutter in embedded and desktop setups
  • Thick copper wiring minimises voltage drop for stable continuous output
  • Plug-and-play design works with most 7.9×5.5mm power bricks and USB-C appliances

Specifications

BrandManw

Questions about this item

How do I connect the 7.9×5.5mm barrel jack to my existing power adapter without creating a loose contact?

Insert the barrel plug fully into the female jack until it seats firmly; the precision-sized 7.9×5.5mm opening is designed for a tight fit that prevents intermittent power loss.

What part of this adapter cable is most likely to wear out first with repeated bending?

The outer jacket resists abrasion and repeated bending, while the thick copper inner wiring maintains low voltage drop; no user-serviceable parts are inside the sealed assembly.

At what point does voltage drop become noticeable when powering a mini PC continuously through the 15cm cable?

Thick copper conductors minimise voltage drop across the 15cm length, supporting stable continuous output for mini PCs, small routers and Type-C notebooks under sustained load.

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