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Short braided cable with DC barrel plug, USB-C connector and LED display

Fervit

Fervit DC 7.4x5.0mm to USB-C Cable with LED Display 21cm

SKU CH-HY4D-VXE6F

Converts a DC 7.4x5.0mm input to USB-C output with a built-in LED display showing real-time voltage, current and power up to 140W

  • 140W Power Delivery charges laptops fast
  • LED display shows live voltage and current
  • Braided 21cm cable resists tangles and wear
  • Works with PD, QC and other protocols
  • Auto-adjusts output from 5V to 20V

DC 7.4x5.0mm to USB-C Cable

This cable converts a DC 7.4x5.0mm power input into a USB-C output with Power Delivery up to 140W (20V/7A). It includes a built-in LED display that shows real-time voltage, current, and power. The 21cm braided cable is designed for portable use with compatible laptops, tablets, and phones.

Suits USB-C PD devices only

Users with devices that charge via USB-C Power Delivery and have a matching DC 15V-20.5V source can monitor charging metrics on the LED screen. It automatically adjusts output to 5V/1.5A, 9V/2A, or 20V/7A. Buyers needing longer reach or a different DC barrel size should look elsewhere.

140W PD via 20V/7A output

The single specification that decides fit is the maximum Power Delivery output of 20V/7A (140W). Your device must accept this profile and your DC source must provide 15V-20.5V input. Verify both values 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 $19.99
Pricier than about 77% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

Which DC power supply do I need to connect to the 7.4x5.0mm input of this cable?

You need a DC power supply that outputs between 15V and 20.5V; the cable will then negotiate 5V/1.5A, 9V/2A or 20V/7A with your USB-C device.

Will this cable charge a 65W USB-C laptop if I keep using my existing 65W USB-C charger?

This cable replaces the USB-C charger — it requires a 15V to 20.5V DC barrel source, so your existing 65W USB-C charger cannot power it.

How can I confirm the cable is delivering the expected 140W to my laptop?

The built-in LED display shows real-time voltage, current and power; when it reads 20V and 7A you are receiving the full 140W.

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