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Silver USB-C male to DC 5.5 x 2.1 mm female cable, nylon braided, 17.4 cm

BUCIER

BUCIER DC5521 to USB-C PD 140W Cable 17.4cm

SKU CH-KZWK-JHB0A

Converts a 5.5 mm × 2.1 mm DC barrel supply to USB-C Power Delivery up to 140 W with a built-in PD identification chip and a 17.4 cm nylon-braided copper cable

  • Connector TypeUSB Type C
  • ColorSilver
  • Connector DetailUSB Type C
  • Constructioncopper
  • Delivers up to 140 W PD charging via built-in identification chip
  • Accepts 15 V to 20.5 V DC 5.5 mm × 2.1 mm input for wide adapter compatibility
  • Nylon-braided jacket with pure copper core ensures durable, efficient power transfer
  • Compact 17.4 cm length fits easily in a backpack for travel
  • Metal connector heads resist wear from repeated plugging and unplugging

Input and output specification

This cable converts a DC 5.5 mm × 2.1 mm female input into a USB Type-C male output with Power Delivery support. It is intended for users who want to power USB-C laptops, tablets or phones from an existing DC barrel power brick. The built-in PD identification chip negotiates 5 V, 9 V or 20 V output automatically.

Sustained power delivery

The adapter delivers up to 140 W continuously when the source brick supplies 15 V to 20.5 V and exceeds the device’s power requirement. A 90 W brick cannot run a 90 W or 100 W laptop through this cable; the input must be higher than the load. No 12 V or 15 V output profiles are provided, only 5 V, 9 V and 20 V.

Thermals noise and power draw

Pure copper conductors and a nylon-braided jacket keep resistance low during extended charging sessions. The 17.4 cm length minimises voltage drop without adding bulk, and the metal connector heads dissipate heat passively. There are no active components that generate audible noise.

Highlights

  • Delivers up to 140 W PD charging via built-in identification chip
  • Accepts 15 V to 20.5 V DC 5.5 mm × 2.1 mm input for wide adapter compatibility
  • Nylon-braided jacket with pure copper core ensures durable, efficient power transfer
  • Compact 17.4 cm length fits easily in a backpack for travel
  • Metal connector heads resist wear from repeated plugging and unplugging

Specifications

BrandSinLoon
Connector TypeUSB Type C
ColorSilver
Connector DetailUSB Type C
Constructioncopper

Questions about this item

How much heat or power loss should I expect from the 17.4cm cable when running a 140W load all day?

The 17.4cm length with pure copper core and nylon braid keeps resistance low, so heat and power loss are minimal during continuous 140W operation.

What DC power brick must I already own for this cable to work with my laptop?

You need a DC 5.5mm × 2.1mm brick supplying 15 V–20.5 V and rated above your laptop’s draw — for example, a 140 W brick for a 100 W laptop.

Will this cable negotiate the correct voltage with my older 90W USB-C laptop that only accepts 5 V, 9 V and 20 V?

Yes, the built-in PD chip advertises 5 V, 9 V and 20 V only, matching laptops that lack 12 V or 15 V support.

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