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Short braided cable with barrel plug 7.9x5.4mm to USB-C connector 18cm

Fervit

Fervit DC Jack 7.9x5.4mm to USB-C 140W 20V7A Cable 18cm

SKU CH-084B-WTE20

Converts a 7.9x5.4mm DC barrel input to USB-C Power Delivery up to 140W at 20V7A for laptops and tablets

  • Charges at up to 140W with 20V7A output from a 140W source
  • Works with USB-C laptops including Mac Pro 2018, 2019, 2020 and XPS models
  • Supports PD, QC 2.0, QC 3.0 and multiple fast-charge protocols
  • Accepts DC input from 15V to 20.5V via 7.9x5.4mm jack
  • Tangle-free braided sleeve on an 18cm cable for durable, portable use

What this cable does

The Fervit DC Jack 7.9x5.4mm to USB-C cable delivers up to 140W at 20V 7A from a compatible DC power source to USB-C laptops, tablets and phones. It supports PD and multiple fast-charge protocols including QC 2.0, QC 3.0, PE+ 1.1 and PE 2.0. The 18cm braided cable is plug-and-play for portable use.

Thermals noise and power

The cable handles a DC input range of 15V to 20.5V and negotiates output profiles of 5V 1.5A, 9V 2A and 20V up to 7A. No active cooling or fan is present, so operation is silent. Power draw matches the connected device up to the 140W maximum rating.

Who should look elsewhere

Buyers whose devices require more than 140W or a voltage outside the 15V to 20.5V input window cannot use this cable. It also does not suit users needing a longer reach than the 18cm length or a different DC barrel size.

Highlights

  • Charges at up to 140W with 20V7A output from a 140W source
  • Works with USB-C laptops including Mac Pro 2018, 2019, 2020 and XPS models
  • Supports PD, QC 2.0, QC 3.0 and multiple fast-charge protocols
  • Accepts DC input from 15V to 20.5V via 7.9x5.4mm jack
  • Tangle-free braided sleeve on an 18cm cable for durable, portable use

Specifications

BrandFervit

Questions about this item

How do I connect the 7.9x5.4mm DC jack to my laptop's power port and what is the common mistake?

Align the centre pin and outer barrel of the 7.9x5.4mm plug with the laptop's DC input, then push firmly until seated; the frequent error is inserting it at an angle, which bends the pin and breaks contact.

What part of this 18cm cable is most likely to need replacement after heavy daily use?

The woven braid sleeve protects the conductors, but repeated sharp bends near the USB-C and DC connectors can fatigue the internal wires, making the cable itself the item that eventually fails.

At what input voltage does the 140W 20V7A output become unavailable during sustained charging?

The cable accepts DC 15V to 20.5V input; if the source drops below 20V the 20V7A profile cannot be maintained and the output falls back to a lower power level.

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