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Compact black adapter with USB-C female input and 7.9×5.4 mm DC barrel output

LORDWORLD

LORDWORLD USB-C to DC 7.9×5.4 mm PD 65 W 20 V Adapter

SKU CH-KKQD-HWJ4A

Converts a 65 W USB-C charger into 18 V–20 V DC power through a 7.9×5.4 mm barrel plug for laptop charging

  • Charge laptops with DC 18V-20V ports using a 65W Type-C charger
  • Built-in PD trigger negotiates 20V output from compatible USB-C power sources
  • Accepts USB-C input and delivers DC 7.9×5.4 mm output for barrel-jack devices
  • Output limited to 18V-20V range, 5V is not supported
  • Requires a Type-C charger rated above 65W for proper operation

USB-C to DC 7.9×5.4 mm adapter

This adapter converts a USB-C Power Delivery charger into a 7.9×5.4 mm DC output for laptops. It accepts a 65 W USB-C charger through its female Type-C port. The built-in PD trigger negotiates 18 V to 20 V output and does not support 5 V. It is designed for users who want to power a barrel-jack laptop from a compact USB-C brick.

Replaces a proprietary laptop power brick

The unit removes the need to carry the original bulky AC adapter when a 65 W or higher USB-C charger is already available. The jump is worth it if the laptop’s DC jack matches the 7.9×5.4 mm size and its power draw stays within the charger’s capability. The charger must be rated above the laptop’s required wattage for reliable operation.

Suits travellers with a compatible USB-C charger

Buyers who already own a 65 W PD charger and a laptop with a matching 7.9×5.4 mm DC port gain a lighter travel kit. It is not for laptops that need more power than the charger can deliver, nor for devices with a different barrel diameter or centre-pin size. Users without a suitable USB-C PD source should look elsewhere.

Highlights

  • Charge laptops with DC 18V-20V ports using a 65W Type-C charger
  • Built-in PD trigger negotiates 20V output from compatible USB-C power sources
  • Accepts USB-C input and delivers DC 7.9×5.4 mm output for barrel-jack devices
  • Output limited to 18V-20V range, 5V is not supported
  • Requires a Type-C charger rated above 65W for proper operation

Specifications

BrandLORDWORLD

Questions about this item

Will the 7.9×5.4 mm barrel plug fit my laptop's DC jack?

The adapter terminates in a 7.9 mm outer by 5.4 mm inner diameter barrel connector; match those dimensions against the port on your device before purchasing.

What is the correct order to connect the 65 W Type-C charger and the DC cable?

Plug the 65 W Type-C charger into the adapter's USB-C female port first, then connect the DC barrel to the laptop; reversing the sequence may prevent the PD trigger from negotiating 18-20 V output.

How often should I replace the USB-C charger used with this adapter?

Replace the 65 W Type-C charger if it no longer delivers 20 V under load, shows physical damage on the cable or connector, or causes the adapter to fall back to lower voltages.

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