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Two black PVC cables with USB-C plugs and DC 5.5×2.1 mm sockets

BUCIER

BUCIER DC 5.5×2.1 mm Female to USB-C Adapter Cable 18.2 cm 2-Pack

SKU CH-8NXM-YPSK6

A bidirectional 18.2 cm cable converts a 5.5×2.1 mm DC barrel jack to USB-C for charging laptops, phones and peripherals

  • TypeUSB
  • Connector TypeUSB Type C
  • ColorBlack
  • Connector Number24
  • Connector DetailUSB Type C
  • Terminal GenderMale-to-Male
  • Bidirectional DC 5.5×2.1 mm to USB-C conversion cable
  • High-quality PVC jacket with pure copper conductors for reliable power
  • Supports 5 V to 12 V DC input without PD chipset
  • Powers USB-C devices from standard DC adapters
  • Charges DC 5.5×2.1 mm equipment via USB-C port

What it is and who it fits

A pair of 18.2 cm adapter cables that convert a 5.5×2.1 mm DC barrel jack to a USB-C male plug or the reverse. Each cable uses a PVC jacket and pure copper conductors for reliable power delivery. They suit owners of routers, LCD panels, fans, desk lamps, Bluetooth speakers or similar 5 V–12 V DC gear who want to run those devices from a USB-C charger or power bank.

Voltage window and PD absence

The cables operate only within a 5 V to 12 V DC range and contain no Power Delivery chipset. They cannot negotiate higher voltages or currents, so they must be paired with a fixed-voltage USB-C source that stays inside that window. Exceeding 12 V or expecting automatic voltage negotiation will not work.

Sustained-load behaviour

Under continuous use the PVC insulation and copper core maintain stable conduction without active cooling. The short 18.2 cm length keeps resistance low, so voltage drop stays minimal even when the connected device draws its full rated current for long periods. Heat remains modest because the cables handle only the modest power levels allowed by the 5 V–12 V specification.

Highlights

  • Bidirectional DC 5.5×2.1 mm to USB-C conversion cable
  • High-quality PVC jacket with pure copper conductors for reliable power
  • Supports 5 V to 12 V DC input without PD chipset
  • Powers USB-C devices from standard DC adapters
  • Charges DC 5.5×2.1 mm equipment via USB-C port

Specifications

BrandXMSJSIY
TypeUSB
Connector TypeUSB Type C
ColorBlack
Connector Number24
Connector DetailUSB Type C
Terminal GenderMale-to-Male
Apple CompatibleTablet
ConstructionPVC
FeaturesFast Charging

Questions about this item

What does the 5.5×2.1 mm barrel size mean for my existing power adapter?

The 5.5 mm outer and 2.1 mm inner diameter match the common DC jack found on many routers, monitors and small appliances, so the cable plugs straight in without an extra sleeve.

How does the USB-C end behave without a Power Delivery chip?

The cable passes only a fixed 5 V to 12 V from the barrel side; it does not negotiate higher voltages, so connected devices charge at their standard USB rate.

Will the 18.2 cm length reach from a desk outlet to my laptop?

At 18.2 cm the cable is a short extender; it bridges the gap between a wall wart and a device sitting right next to it, not across a desk.

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