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Black braided USB-C cable with DC barrel connector and LED display, 21 cm

Vszerda

Vszerda DC Jack 7.9x5.4mm to USB-C 140W LED Display Cable 21cm

SKU CH-7REZ-TFSEA

A 21 cm cable converts a 7.9×5.4 mm DC jack to USB-C with a real-time LED power display and up to 140 W charging

  • TypeUSB
  • ColorBlack
  • Cable Length21
  • Length21
  • FeaturesRugged Durability Fast charge Type-C PD Volt Current Power D
  • Real-time charging monitoring with LED voltage, current and power display
  • Up to 140W fast charging at 20V/7A for laptops and phones
  • Tangle-free braided sleeve ensures rugged durability and easy carrying
  • Wide compatibility with USB-C laptops including Mac Pro 2018/2019/2020 and XPS
  • Compact 21cm plug-and-play design for flexible portable use

DC Jack 7.9x5.4mm to USB-C 140W cable

This 21cm adapter cable converts a 7.9mm by 5.4mm DC barrel input into a USB-C output with an integrated LED display. It targets users who want to power modern USB-C laptops, tablets or phones from an existing high-wattage DC brick. The rugged braided sleeve and compact length suit portable setups where a permanent dongle is preferred.

Practical limits of the DC-to-USB-C interface

The cable accepts DC input between 15V and 20.5V and negotiates output profiles of 5V at 1.5A, 9V at 2A and 20V at 7A for a 140W ceiling. It implements PD together with QC2.0, QC3.0, DCP, PE+1.1, PE2.0, FCP, AFC, SFCP and SCP protocols. Real-time voltage, current and power readouts let you verify the active profile, but the fixed 21cm length restricts placement between the source brick and the device.

Replaces a proprietary barrel-to-USB-C dongle

This cable upgrades from a single-voltage barrel tip or a non-monitored adapter by adding multi-voltage PD negotiation and an on-cable power meter. The jump is worth it when you already own a 140W, 100W or 65W DC supply and need USB-C charging with visible confirmation of the negotiated rate. It is not for buyers who need a longer cable, a detachable tip system or a source that operates below 15V.

Highlights

  • Real-time charging monitoring with LED voltage, current and power display
  • Up to 140W fast charging at 20V/7A for laptops and phones
  • Tangle-free braided sleeve ensures rugged durability and easy carrying
  • Wide compatibility with USB-C laptops including Mac Pro 2018/2019/2020 and XPS
  • Compact 21cm plug-and-play design for flexible portable use

Specifications

Brandxiwai
TypeUSB
ColorBlack
Cable Length21
Length21
FeaturesRugged Durability Fast charge Type-C PD Volt Current Power Display

Questions about this item

Which cable length suits a tight laptop bag — 21 cm or a longer option?

The only length offered is 21 cm, designed for short runs between a DC barrel jack and a USB-C device.

What does the 140 W rating mean when I plug this into my laptop?

With a 140 W DC source the cable can deliver up to 20 V at 7 A, matching the 140 W, 100 W or 65 W profiles of supported laptops.

What charging standards does the USB-C end actually negotiate?

It negotiates PD, QC 2.0, QC 3.0, DCP, PE+ 1.1, PE 2.0, FCP, AFC, SFCP and SCP, with input limited to DC 15 V–20.5 V.

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