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White USB Type-A to 3.5mm barrel jack cable, 50cm

RUITEXUN USB to DC 3.5mm Cable 50cm White

SKU CH-NEX0-JR0HV

A 50 cm white cable converts a USB Type-A port into a 3.5 mm x 1.35 mm DC barrel jack for powering 5 V devices such as speakers or fans

  • TypeUSB
  • Connector TypeUSB Type A
  • ColorWhite
  • Cable Length50.00
  • Length50.00
  • Connector Number4
  • Powers 5 V devices from any USB-A port using the DC 3.5 mm barrel jack
  • Removes the need for a separate wall adapter by drawing power directly from USB
  • 50 cm copper cable keeps mobile setups tidy and portable
  • Male-to-male connectors ensure a secure fit on both the USB and DC ends
  • Compatible with speakers, USB fans and other gear using a 3.5 mm × 1.35 mm jack

Purpose and compatibility

This USB Type-A male to DC 3.5 mm x 1.35 mm barrel jack cable lets you power 5 V devices directly from a computer or USB charger. It suits speakers, small fans and other peripherals that use the matching barrel connector. The 50 cm length keeps desktop runs tidy without excess slack. Builders who need a second card or a different barrel size cannot use this adapter.

Thermals, noise and power

The cable carries only the 5 V supply provided by the host USB port, so it adds no active cooling or fan noise to the system. Copper conductors keep resistance low during normal charging or peripheral operation. No external power brick is required, eliminating an extra heat source on the desk. Users who need higher voltage or current delivery will find this cable unsuitable.

Sustained-load behaviour

Under continuous use the cable simply passes whatever current the USB port allows up to the device's demand. There is no built-in regulation, so voltage stays at the port's 5 V level regardless of load duration. The fixed 50 cm length and male-to-male terminals mean it cannot be extended or adapted without extra connectors. Installations needing longer runs or locking connectors must look elsewhere.

Highlights

  • Powers 5 V devices from any USB-A port using the DC 3.5 mm barrel jack
  • Removes the need for a separate wall adapter by drawing power directly from USB
  • 50 cm copper cable keeps mobile setups tidy and portable
  • Male-to-male connectors ensure a secure fit on both the USB and DC ends
  • Compatible with speakers, USB fans and other gear using a 3.5 mm × 1.35 mm jack

Specifications

BrandRUITEXUN
ModelUSB to DC 3.5mm Cable
TypeUSB
Connector TypeUSB Type A
ColorWhite
Cable Length50.00
Length50.00
Connector Number4
Connector DetailUSB Type A
Terminal GenderMale-to-Male
ConstructionCopper
FeaturesFast Charging

Questions about this item

How do I connect the 3.5mm x 1.35mm barrel plug to my USB electric fan without damaging the port?

Align the centre pin of the DC 3.5mm male barrel jack with the fan's socket and push straight in until fully seated; forcing it at an angle can bend the 1.35mm inner pin.

Will the copper conductors inside the 50cm cable degrade and need replacement after repeated bending?

The copper construction is rated for normal flexing during mobile use; replace the cable only if the white jacket shows exposed wire or the USB Type-A male plug becomes loose.

At what point does the 5V USB port current limit stop the cable from powering a louder speaker continuously?

The cable passes whatever current the host USB Type-A port supplies up to its 5V rating; sustained high-volume playback may hit the port's current ceiling before the cable itself overheats.

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