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A black cable with a 5.5 by 1.7 mm barrel plug on one end and a USB-C connector on the other

Fervit

Fervit DC Jack 5.5x1.7mm to USB-C PD Cable 65W

SKU CH-KXDY-2K5SJ

A 5.5×1.7 mm barrel-to-USB-C cable delivers up to 65 W (5 V/2 A, 9 V/3 A, 20 V/3.25 A) for laptops, tablets and phones

  • Charges laptops and phones at up to 65 W
  • Accepts DC input from 15 V to 20 V
  • Delivers 5 V 2 A, 9 V 3 A or 20 V 3.25 A via USB-C
  • Compatible with PD, QC 2.0, QC 3.0 and other fast-charge protocols
  • 5 mm by 1.7 mm barrel plug fits many power adapters

Fervit DC Jack 5.5x1.7mm to USB-C Cable

This cable converts a 5.5mm by 1.7mm DC barrel input into a USB-C power output. It supports Power Delivery and multiple fast-charge protocols including QC 2.0 and QC 3.0. The adapter suits users who need to power USB-C laptops, tablets or phones from an existing DC source. Compatibility must be checked against the device's rated voltage and current before use.

65W Maximum Output and Protocol Support

The cable delivers up to 65W with selectable output profiles of 5V at 2A, 9V at 3A or 20V at 3.25A. It accepts a DC input range of 15V to 20V from the source supply. Supported standards cover PD, DCP, PE+ 1.1, PE 2.0, FCP, AFC, SFCP and SCP. The supplier warns that incorrect voltage or current matching can damage connected equipment.

Barrel-to-USB-C Build Integration

A 5.5mm by 1.7mm male barrel plug connects to the DC power source while a USB-C male plug attaches to the target device. No external power brick is required beyond the original DC supply. The cable frees a USB-C port from a dedicated charger when a suitable DC input is already available. It is not for users needing a standalone wall charger or a higher wattage delivery.

How it compares

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

Price $16.99
Pricier than about 60% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

How do I connect the 5.5×1.7 mm DC plug to my laptop’s 15–20 V barrel port without damaging the device?

Match the centre-positive 5.5×1.7 mm jack to the laptop’s DC input, confirm the laptop requires 15–20 V, then plug the USB-C end into the device; the cable negotiates 5 V/2 A, 9 V/3 A or 20 V/3.25 A automatically.

Will the USB-C connector or the barrel plug wear out first with daily plugging?

The USB-C plug is rated for thousands of insertion cycles, while the 5.5×1.7 mm barrel jack typically tolerates fewer; expect the barrel side to loosen first if the laptop port is tight.

At what point does the cable hit its 65 W ceiling during a long charge session?

When the connected device requests 20 V at 3.25 A the cable delivers its maximum 65 W; any higher demand is refused by the PD controller.

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