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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

  • Product 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.

How it compares

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

Price $4.99
Cheaper than about 92% of the 864 comparable items (median $15.99).

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Specifications

Product
Brand nameUnique Bargains
Product 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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