We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Short braided cable with DC 7.4x5.0mm plug and USB-C connector

Vszerda

Vszerda UC-158-7450MM-XY DC 7.4x5.0mm to USB-C 140W 18cm Cable

SKU CH-2B3P-QBMA3

Converts a 7.4×5.0 mm DC jack to USB-C for up to 140 W charging in an 18 cm braided cable

  • Cable length18 cm
  • Connector count1
  • Overall length18 cm
  • Details18, centimeters, UC-158-7450MM-XY, xiwai, Laptop
  • Key featuresLaptop
  • Tangle-free braided jacket protects the 18 cm cable for long-term durability
  • Delivers up to 140 W at 20 V / 7 A for fast laptop charging
  • Supports PD, QC 2.0, QC 3.0 and other fast-charge protocols
  • Accepts DC 15 V – 20.5 V input and provides 5 V, 9 V or 20 V outputs
  • Works with USB-C laptops such as Mac Pro 2018/2019/2020, XPS and Chromebooks

Purpose and audience

This 18 cm cable converts a DC 7.4x5.0 mm barrel jack into a USB-C power input, delivering up to 140 W at 20 V/7 A. It targets laptop owners who need to power or charge USB-C devices from a compatible DC source.

Build integration

The woven braid jacket resists tangling and adds durability for portable use. It requires a DC supply rated 15 V to 20.5 V and a USB-C device that accepts 5 V/1.5 A, 9 V/2 A or 20 V/7 A profiles. No software or drivers are involved.

Who it suits and who it does not

Suits users with a matching barrel-output adapter and a USB-C laptop, tablet or phone that operates within the listed voltage and current limits. Not for buyers whose DC source falls outside 15 V to 20.5 V, whose device needs a different charge profile, or who need a longer cable for desk routing.

How it compares

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

Price $12.99
Cheaper than about 70% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameXiwai
Model nameUC-158-7450MM-XY
Ports & slots
Connector count1
Size & build
Cable length18 cm
Overall length18 cm

Questions about this item

Will the 18 cm length reach my laptop without strain?

The cable measures 18 cm including both connectors, so it only spans a short gap between the DC jack and the USB‑C port.

Does the cable get hot when delivering 140 W continuously?

The braided jacket is designed for rugged durability and heat dissipation during sustained 140 W charging sessions.

What power source must I already have to use this cable?

You need a DC supply with a 7.4 × 5.0 mm plug that can output 15‑20.5 V and at least 7 A to reach the 140 W rating.

More in USB Cords & Extension Cables

Similar items