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

Fervit

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

SKU CH-JVAE-1AT94

Converts a 5.5×2.1mm DC input to USB-C output with a real-time LED power display, delivering up to 140W for laptops, tablets and phones

  • 140W fast charging for laptops and phones
  • Real-time voltage, current and power on LED display
  • Supports PD, QC 2.0 / 3.0, DCP, PE+/PE 2.0, FCP, AFC, SFCP, SCP
  • Braided tangle-free jacket in compact 21cm length
  • Auto-adjusts output 5V/1.5A, 9V/2A, 20V/7A to match device

DC 5.5x2.1mm to USB-C with LED Display

This Fervit cable converts a DC barrel input into a USB-C output with a built-in LED screen that shows real-time voltage, current and power. It is designed for users who need to power laptops, tablets or phones from a compatible DC source while monitoring the exact wattage being delivered. The 21 cm braided jacket keeps the connection tidy and portable.

140W Power Delivery at 20V/7A

The cable supports up to 140 watts through Power Delivery, accepting a DC input between 15 V and 20.5 V and automatically negotiating 5 V/1.5 A, 9 V/2 A or 20 V/7 A output. Buyers must confirm that their DC source stays within the 15 V to 20.5 V window and that the target device accepts one of the listed output profiles.

Fits between a DC barrel supply and a USB-C device

The 5.5 mm by 2.1 mm plug connects to the power source, while the USB-C end attaches to the laptop, tablet or phone. Multi-protocol support including PD, QC 2.0/3.0, DCP, PE+/PE 2.0, FCP, AFC, SFCP and SCP covers a wide range of Type-C gear. Users who need a longer reach or a different barrel size will require an alternative solution.

How it compares

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

Price $18.99
Pricier than about 73% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameFervit

Questions about this item

What does the 140W rating mean when this cable is connected to a laptop?

The cable can deliver up to 140W at 20V and 7A when the power source and laptop both support that Power Delivery level, and it will step down to 100W or 65W for devices that negotiate lower power.

Which charging standard limits the actual output, and what is the highest voltage it allows?

USB Power Delivery governs the handshake, and the highest fixed voltage the cable negotiates is 20V, with the source required to supply between 15V and 20.5V on the DC input side.

What clearance is needed for the DC plug and the LED housing?

The barrel connector measures 5.5mm outer diameter by 2.1mm inner diameter, and the total cable length including both ends is 21cm, so allow at least that much straight run from the power adapter.

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