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Five black 30 cm DC barrel extension cords with 5.5 mm × 2.1 mm connectors

Unique-Bargains

Unique-Bargains DC Power Extension Cord 5.5mm x 2.1mm 18AWG 30cm 10A 5pcs

SKU CH-9CN3-05KG3

Five 30 cm extension cords with 5.5 mm × 2.1 mm barrel connectors, 18 AWG pure-copper wire rated for 10 A

  • Product typePower
  • Extends reach by 30 cm for flexible placement
  • Pure copper 18 AWG core ensures strong conductivity
  • 5 mm × 2.1 mm barrel fits compatible DC devices
  • Rated 10 A for high-power LED and monitor supplies
  • Five-piece pack provides multiple connections from one purchase

Extension Cable for 5.5 mm × 2.1 mm DC Devices

This pack contains five new barrel-plug extension cords, each 30 cm long with a 5.5 mm outer diameter and 2.1 mm centre pin. The cables use 18 AWG pure copper conductors rated for 10 A, suited to powering LED lighting, monitors or similar DC equipment.

Replaces Shorter Factory Leads on Fixed

When the original power lead cannot reach the supply or a distribution block, these pigtails close the gap without splicing. The jump is worth it for permanent mounts where a secure female barrel connector and 30 cm of flexible 4.5 mm jacket simplify cable routing.

Pure Copper Core Maintains Conductivity Under

The 12 × 0.12 mm strand construction keeps resistance low during sustained 10 A operation, so voltage drop stays predictable across the 30 cm length. The 18 AWG gauge and 4.5 mm outer diameter are sized for steady current rather than short bursts.

How it compares

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

Price $5.99
Cheaper than about 87% of the 864 comparable items (median $15.99).

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Specifications

Product
Brand nameUnique Bargains
Product typePower

Questions about this item

What barrel-plug diameter and centre-pin size does the 5.5 mm × 2.1 mm female connector on this cord accept?

The female barrel connector is sized for a 5.5 mm outer diameter and a 2.1 mm centre pin, matching standard DC plugs of that specification.

How do I connect the 18 AWG pigtail wires to my device, and which step is often missed?

Strip each 12 × 0.12 mm² conductor, match polarity to your equipment, then solder or crimp securely; the step often missed is verifying polarity with a multimeter before applying power.

When should I replace these 30 cm, 18 AWG extension cords in a continuous 10 A LED installation?

Inspect the 4.5 mm outer jacket and pure-copper cores every 6–12 months; replace any cord showing insulation cracks, discoloured conductors or loose barrel-fit that could increase resistance.

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