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Short braided cable with DC 4.5×3.0 mm barrel plug to USB-C connector, 18 cm long

Vszerda

Vszerda DC 4.5×3.0 mm to USB-C 100 W braided cable 18 cm

SKU CH-KPTZ-27DWK

Connects a 4.5×3.0 mm barrel jack to USB-C for up to 100 W charging in an 18 cm braided cable

  • Cable length18 cm
  • Connector count1
  • Overall length18 cm
  • Details18, centimeters, UC-139-4530MM-XY, xiwai, Laptop
  • Key featuresLaptop
  • Braided sleeve resists tangles for durable daily use
  • 18 cm length keeps connections compact and portable
  • Delivers up to 100 W at 20 V 5 A for fast charging
  • Supports PD QC2.0 QC3.0 DCP PE+1.1 PE2.0 FCP AFC SFCP SCP
  • Works with USB-C laptops including Mac Pro 2020 2019 2018 XPS Chromebook

DC 4.5×3.0 mm to USB-C charging cable

This 18 cm braided adapter converts a DC 4.5×3.0 mm barrel input into a USB-C power output for laptops, tablets and phones. It supports up to 100 W at 20 V/5 A when paired with a compatible 100 W source and device. The tangle-free woven sleeve adds durability for frequent transport. Plug-and-play operation requires no drivers or configuration.

Thermals noise and power draw

The cable itself generates no audible noise and adds negligible thermal load during normal charging. Power delivery follows the negotiated profile: 5 V/1.5 A, 9 V/1.5 A or 20 V/5 A up to 100 W maximum. Input voltage must stay within the 15 V to 20 V DC range specified by the source adapter. No active cooling or fan is present or required.

Replaces proprietary barrel chargers

This adapter replaces a lost or bulky proprietary barrel charger for USB-C devices that accept 20 V, 9 V or 5 V PD input. The jump is worth it when you want a single compact cable to charge a MacBook Pro 2018 to 2020, XPS, Chromebook or similar laptop from an existing high-wattage DC source. It is not for devices that require more than 100 W, need a different barrel size, or operate outside the 15 V to 20 V input window.

How it compares

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

Price $12.99
Cheaper than about 70% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameXiwai
Model nameUC-139-4530MM-XY
Ports & slots
Connector count1
Size & build
Cable length18 cm
Overall length18 cm

Questions about this item

How do I connect the 4.5×3.0 mm DC jack to my laptop’s power port and what step is often missed?

Align the centre pin and outer sleeve of the 4.5×3.0 mm plug with the laptop’s DC socket, push straight in until fully seated, then plug the USB-C end into the device; the step often missed is confirming the laptop requires 15-20 V input before connecting.

What maintenance or replacement will this 18 cm braided cable need over time?

Inspect the woven braid sleeve and both connectors periodically for fraying or bent pins; replace the cable if the braid exposes inner wires or the DC jack becomes loose, as no user-serviceable parts exist inside.

What limit appears first when this cable runs at 100 W continuously?

The 20 V / 5 A maximum output rating is the first limit; sustained 100 W operation requires a 100 W DC source and a device that negotiates 20 V, otherwise output drops to 9 V / 1.5 A or 5 V / 1.5 A.

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