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Short braided USB-C to 4.0x1.3 mm DC cable, 18 cm

Fervit

Fervit 100W USB-C to DC 4.0x1.3mm Power Cable 18cm

SKU CH-0Q39-3W1TD

Connects a USB-C power source to a 4.0×1.3 mm DC jack, delivering up to 100 W at 20 V/5 A for compatible laptops and devices

  • Up to 100W charging from a DC 20V 5A source
  • Works with 65W and 100W USB-C laptops including Mac Pro 2020 2019 2018
  • Supports PD QC 2.0 QC 3.0 and other fast-charge protocols
  • Input DC 15V to 20V output 5V 1.5A 9V 1.5A 20V 5A
  • 18cm braided cable with DC 4.0x1.3mm jack for portable use

USB-C to DC 4.0x1.3mm power cable

This Fervit cable converts a USB-C power delivery source to a 4.0x1.3mm DC jack for laptops and tablets. It supports up to 100W at 20V5A when paired with a compatible 100W charger and device. The 18cm length keeps connections tidy on a desk or in a bag. It is aimed at users who need to power barrel-jack devices from modern USB-C PD adapters or power banks.

Thermals noise and power draw

The cable itself generates no audible noise and adds negligible thermal load during operation. It passes through power from a DC 15V-20V input up to a 100W maximum, negotiating 5V1.5A, 9V1.5A or 20V5A profiles. The woven braid sleeve resists tangling and protects the conductors from wear during repeated plug cycles. No active cooling or external power is required beyond the USB-C source.

Build fit and constraints

The 4.0x1.3mm DC plug fits devices that accept this specific barrel size, so buyers must confirm their laptop or tablet uses the same connector. It works with USB-C PD, QC2.0, QC3.0, DCP, PE+1.1, PE2.0, FCP, AFC, SFCP, SCP and standard USB PD protocols. The short 18cm reach suits stationary setups but limits placement flexibility between the charger and device. Users needing longer cable runs or a different barrel diameter will need an alternative solution.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $18.99
Pricier than about 73% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

How do I connect the DC 4.0x1.3mm jack to my laptop and what is the common mistake?

Plug the DC 4.0x1.3mm end into the laptop power port and the USB-C end into a 100W PD charger. The step people miss is confirming the laptop needs 15-20V input before connecting.

What part of this cable wears out first and when should I replace it?

The woven braid sleeve protects the 18cm cable, but repeated bending near the connectors can fatigue the internal wires. Replace it if the jacket frays or charging becomes intermittent.

What thermal or power limit appears first during continuous 100W charging?

The cable is rated for 20V at 5A maximum. Sustained 100W operation will hit this 20V/5A ceiling before any other limit, so the source must maintain 20V output under load.

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