We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Short braided cable with a 5.5x2.1mm DC barrel plug on one end and a USB-C connector on the other, 18cm total length

Fervit

Fervit DC Jack 5.5x2.1mm to USB-C 140W Cable 18cm

SKU CH-FAKM-R3D3K

Converts a 5.5 mm barrel jack into a USB-C PD port delivering up to 140 W at 20 V 7 A for laptops and phones

  • Tangle-free braided sleeve protects cable for long-term use
  • Delivers up to 140W at 20V/7A for fast laptop charging
  • Works with USB-C laptops including MacBook Pro 2020, 2019, 2018 and XPS models
  • Supports PD, QC 2.0, QC 3.0 and multiple fast-charge protocols
  • Compact 18 cm length with DC 5.5×2.1 mm input for portable power

Power adapter cable for USB-C laptops

This 18 cm cable converts a 5.5×2.1 mm DC barrel jack into a USB-C plug so you can power compatible laptops, tablets or phones from an existing 140 W or 65 W supply. It targets users who want to reuse a barrel-output charger instead of carrying a second brick. The woven braid jacket resists tangling and the short length keeps the setup compact for travel or desk use.

Build quality and connector layout

A tangle-free woven sleeve protects the conductors while the moulded strain reliefs at both ends reduce cable fatigue from repeated plugging. The DC input accepts 15–20 V sources and the USB-C output delivers up to 140 W at 20 V/7 A, with automatic negotiation down to 9 V/2 A or 5 V/2 A for smaller devices. Plug-and-play operation means no drivers or configuration are required.

Maximum 140 W power delivery

The cable supports a peak throughput of 140 W (20 V/7 A) when paired with a suitable DC source and a USB-C device that requests that profile. Buyers whose hardware only accepts lower voltages or who need more than 140 W should look for a higher-rated solution. Verify your device’s rated voltage and current before connecting to avoid damage.

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

What USB-C Power Delivery profiles does the 140W cable support?

The cable handles USB PD plus QC 2.0, QC 3.0, DCP, PE+ 1.1, PE 2.0, FCP, AFC, SFCP and SCP for broad fast-charge compatibility.

What are the connector dimensions and cable length?

It has a 5.5 mm outer by 2.1 mm inner DC barrel plug on one end and a USB-C plug on the other, with an 18 cm overall length including connectors.

How do I connect the cable so the laptop actually draws 140 W?

Plug the DC barrel end into a 15 V–20 V source rated for at least 140 W, then connect the USB-C end to the device; the cable negotiates 20 V at 7 A only when both the charger and the laptop support that profile.

More in USB Cords & Extension Cables

Similar items