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Short braided cable with a 5.5x2.1mm DC barrel plug on one end and a USB-C connector on the other, 18cm long

Vszerda

Vszerda UC-158-5521MM-XY DC 5.5x2.1mm to USB-C 140W 18cm cable

SKU CH-T7X7-PW67X

Converts a 5.5x2.1mm DC barrel jack to USB-C for up to 140W charging in an 18cm braided cable

  • Cable length18 cm
  • Connector count1
  • Overall length18 cm
  • Details18, centimeters, UC-158-5521MM-XY, xiwai, Laptop
  • Key featuresLaptop
  • Charges at up to 140W with 20V 7A output
  • Braided sleeve resists tangles and wear over time
  • Works with USB-C laptops needing 20V 9V or 5V input
  • Supports PD QC2.0 QC3.0 DCP PE+1.1 PE2.0 FCP AFC SFCP SCP
  • 18cm length keeps desk setups tidy and portable

DC 5.5×2.1 mm to USB-C 140 W cable

The Vszerda UC-158-5521MM-XY converts a 5.5 mm by 2.1 mm DC barrel input into a USB-C output that can deliver up to 140 W at 20 V 7 A. It is aimed at laptop and tablet owners who want to power or charge USB-C devices from an existing DC power source.

Installation and common issues

The 18 cm braided cable is fully plug-and-play with no drivers required. Ensure the DC source operates within the 15 V to 20.5 V input range; using a supply outside this window can damage the connected laptop or phone. Verify the device's rated voltage and current before connecting.

Suitable users and alternatives

This cable suits users who need a short, rugged adapter to run USB-C laptops, tablets or phones from a compatible DC barrel supply. It is not for buyers who require a longer cable run or who need to power devices from a lower-voltage DC source below 15 V.

How it compares

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

Price $13.99
Cheaper than about 60% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameXiwai
Model nameUC-158-5521MM-XY
Ports & slots
Connector count1
Size & build
Cable length18 cm
Overall length18 cm

Questions about this item

How do I know the cable is delivering 140W 20V 7A after I plug it in?

The cable supports up to 140W 20V 7A when the power source provides 15V to 20.5V input and the connected device negotiates 20V 7A; your laptop or phone will show the active charging rate on its battery or power screen.

What comes in the box and is a power adapter included?

The package contains only the 18cm DC 5.5x2.1mm male to USB-C braided cable; a compatible DC power supply that outputs 15V to 20.5V must be purchased separately.

Which version should I choose for a laptop that needs 20V 7A versus one that needs 9V 2A?

This single model UC-158-5521MM-XY covers both profiles — it outputs 20V 7A (140W max), 9V 2A and 5V 1.5A automatically via PD negotiation, so no other version is required.

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