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A black cable with a 7.4 mm DC barrel plug on one end and a USB-C plug on the other

Fervit

Fervit DC Jack 7.4x5.0mm to USB-C PD Cable 65W

SKU CH-RAYN-Y9W92

Converts a 7.4×5.0 mm DC barrel jack input of 15–20 V into a USB-C PD output up to 65 W (5 V/2 A, 9 V/3 A, 20 V/3.25 A) for laptops, tablets and phones

  • Charges at up to 65W via USB-C PD
  • Accepts 15V-20V DC barrel input for flexible power sources
  • Supports multiple fast-charge protocols including QC 3.0 and FCP
  • Delivers 5V, 9V or 20V outputs to match device needs
  • 4×5.0 mm jack fits compatible laptops, tablets and phones

DC 7.4x5.0mm adapter cable

This cable converts a 7.4x5.0mm DC barrel input into a USB-C Power Delivery output for laptops tablets and phones. It supports a 65W maximum with 5V 2A 9V 3A and 20V 3.25A profiles. The input accepts 15V to 20V from the original power supply. Buyers who need a different barrel size or a higher wattage cannot use this adapter.

Sustained load behaviour

The cable delivers up to 65W continuously when the source maintains 15V to 20V input and the device negotiates a supported PD or quick-charge protocol. Voltage drops or protocol mismatches will reduce the available power. Users who rely on an undersized DC supply may see the output throttle or shut down under full load.

Installation and common issues

Connect the DC plug to the original charger then plug the USB-C end into the device; the cable works with PD QC2.0 QC3.0 DCP PE+1.1 PE2.0 FCP AFC SFCP and SCP. The most frequent problem is applying an input outside the 15V to 20V range which can damage the connected hardware. Verify the device voltage and current requirements before use.

Highlights

  • Charges at up to 65W via USB-C PD
  • Accepts 15V-20V DC barrel input for flexible power sources
  • Supports multiple fast-charge protocols including QC 3.0 and FCP
  • Delivers 5V, 9V or 20V outputs to match device needs
  • 4×5.0 mm jack fits compatible laptops, tablets and phones

Specifications

BrandFervit

Questions about this item

Does the 7.4x5.0 mm DC jack get hot when the cable delivers 65 W continuously?

The cable is rated for 65 W maximum output at 20 V and 3.25 A; heat will depend on the power source and load, so ensure adequate ventilation around the connector during sustained use.

What power source must I already have to use this cable with my laptop?

You need a DC power supply that provides 15 V to 20 V input through a 7.4x5.0 mm jack and can deliver enough current for the required 65 W output.

Will this cable charge an older phone that only supports 5 V charging?

Yes, the cable negotiates 5 V at 2 A through its USB-C PD and legacy protocol support, so it will charge older 5 V devices safely.

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