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Two black 30 cm DC power cords with 4.0 mm by 1.7 mm barrel plugs

Unique-Bargains

Unique-Bargains 2pcs DC 4.0mm x 1.7mm 3A 30cm power extension cord

SKU CH-BTTE-PXEQQ

Two 30 cm pure-copper pigtails with 4.0 × 1.7 mm barrel plugs extend DC power connections for LED gear and monitors

  • TypePower
  • Two cords included for spare or dual-device use
  • 0 mm × 1.7 mm barrel plug fits matching DC jacks
  • 30 cm length keeps wiring tidy on the bench
  • 22 AWG pure-copper conductors carry up to 3 A reliably
  • 5 mm outer diameter suits tight routing spaces

30 cm DC 4.0 mm × 1.7 mm Power Extension

This two-piece set provides 30 cm DC power extension cords with a 4.0 mm outer diameter and 1.7 mm inner diameter barrel connector. Each pigtail uses a 22 AWG pure copper core rated for 3 A current. The cords suit low-voltage DC devices such as LED lighting or monitoring equipment.

Suits DC devices with a matching 4.0 mm × 1.7 mm

Buyers whose equipment uses a different barrel size, such as the common 5.5 mm × 2.5 mm interface, cannot use these cords. The 30 cm length also limits placement to short-range connections, so installers needing longer runs should look elsewhere.

Simple plug-in installation with polarity care

The male barrel plug inserts directly into the device jack, requiring no tools or soldering. The main risk is reversing polarity if the device expects centre-negative wiring, which can damage sensitive electronics. Verify the jack dimensions and polarity marking before connecting.

Highlights

  • Two cords included for spare or dual-device use
  • 0 mm × 1.7 mm barrel plug fits matching DC jacks
  • 30 cm length keeps wiring tidy on the bench
  • 22 AWG pure-copper conductors carry up to 3 A reliably
  • 5 mm outer diameter suits tight routing spaces

Specifications

BrandUnique Bargains
TypePower

Questions about this item

What power adapter do I need so the 4.0 mm × 1.7 mm barrel plug on this cord fits?

You need an adapter or power supply that provides a matching 4.0 mm outer diameter and 1.7 mm inner diameter female barrel jack.

Can I use these 22 AWG / 24 AWG leads with my older 5.5 mm × 2.5 mm barrel devices?

Not directly — the 4.0 mm × 1.7 mm male plug will not mate with a 5.5 mm × 2.5 mm jack; a separate adapter is required.

How do I confirm the 3 A rating is actually delivered after I connect the 30 cm cord?

Measure voltage at the device end under load; if it stays within spec and the 22 AWG / 24 AWG copper cores show no overheating, the cord is performing as rated.

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