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Short braided cable with barrel plug, USB-C end and LED display module

Fervit

Fervit DC 5.5x2.1mm to USB-C 140W LED Display Cable 21cm

SKU CH-4Z81-DM5H6

Converts a 5.5x2.1mm DC jack to USB-C with an LED display showing real-time voltage, current and power up to 140W

  • Real-time charging data with LED voltage, current and power display
  • Up to 140W delivery at 20V 7A for laptops and phones
  • Works with 15V-20.5V DC input and multiple fast-charge protocols
  • Tangle-free braided jacket on a compact 21cm cable
  • Compatible with Mac Pro 2018-2020, XPS, Chromebook and other 20V/9V/5V USB-C devices

Fervit 140W USB-C power cable with LED display

This 21 cm cable converts a 5.5×2.1 mm DC barrel input into a USB-C output that can deliver up to 140 W. It targets users who need to power modern laptops, tablets or phones from an existing DC source without carrying a bulky adapter.

Sustained 140 W delivery with real-time monitoring

The cable supports a continuous 20 V / 7 A throughput when paired with a 140 W source and a compatible device. An integrated LED display shows voltage, current and power as you work, so you can verify the load remains stable during long sessions.

Braided jacket, fixed 21 cm length

A woven braid sleeve resists tangling and wear while keeping the cable compact for travel. It negotiates PD, QC 2.0, QC 3.0, DCP, PE+ 1.1, PE 2.0, FCP, AFC, SFCP, SCP and USB PD across 5 V, 9 V and 20 V rails. The short, fixed length suits desk setups but cannot reach distant outlets. Not for users who need a longer run or a detachable DC plug.

How it compares

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

Price $17.99
Pricier than about 70% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

Does the LED display on this 140W cable draw noticeable power or generate heat during all-day use?

The built-in LED display shows voltage, current and power in real time while consuming only a tiny fraction of the 140W throughput, so it adds negligible heat or power draw during continuous operation.

What power source must I already have to use this DC 5.5x2.1mm to USB-C cable?

You need a DC power supply that delivers 15V to 20.5V input — such as a 140W, 100W or 65W laptop brick — with a 5.5x2.1mm barrel plug to connect to the cable's input jack.

Will this cable safely charge my 2018 MacBook Pro and 2019 XPS alongside newer 140W laptops?

Yes, the cable negotiates 5V/1.5A, 9V/2A or 20V/7A via USB-PD and multiple quick-charge protocols, so it works with 2018, 2019 and 2020 MacBook Pro models, XPS, Chromebooks and other 20V/9V/5V USB-C devices.

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