We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black barrel power extension cable 5.5mm x 2.5mm 30cm 18AWG 10A

Unique-Bargains

Unique-Bargains 5.5mm x 2.5mm 10A 18AWG 30cm power extension cord

SKU CH-7W5A-T7JQE

A 30 cm DC power extension with a 5.5 mm x 2.5 mm barrel plug rated for 10 A using 18 AWG pure copper conductors

  • Product typePower
  • 5 mm × 2.5 mm barrel plug fits compatible DC devices
  • 10 A rating supports high-power supplies and LED equipment
  • 18 AWG pure copper cores deliver strong electrical conductivity
  • 30 cm length provides a short, tidy extension
  • 5 mm outer diameter ensures durable insulation

Extension Cord for DC Devices

This 30cm power extension cord carries a 5.5mm by 2.5mm barrel connector rated at 10A. It suits users who need to extend the reach of a DC power supply for monitors, LED lighting or similar equipment. The male plug pigtail connects directly to an existing female jack.

Thermals and Power Handling

Pure copper 18AWG conductors with a 0.75mm² cross-section support the rated 10A current without excessive heating. The 4.5mm outer jacket protects the cores during normal indoor use. No active cooling is required for this passive cable assembly.

Build Quality and Daily Use

The barrel plug fits standard 5.5mm by 2.5mm sockets, so verifying the device jack before purchase avoids mismatch. A short 30cm length keeps cable clutter low on benches or inside enclosures. The pigtail design leaves the far end open for direct wiring or further adaptation.

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).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameUnique Bargains
Product typePower

Questions about this item

How do I connect the 5.5mm x 2.5mm barrel plug without reversing polarity?

Align the centre pin with the positive terminal on your device; the 2.5 mm inner diameter only fits the matching jack, so forcing it the wrong way round is the common mistake.

Will the 18AWG copper cores need replacement after heavy use?

The 18AWG pure copper conductors are rated for continuous 10 A load; they do not degrade under normal operation, so no scheduled replacement is required.

At what point does the 30 cm length limit voltage drop on a 10 A circuit?

With 2 × 0.75 mm² cores the resistive drop stays negligible at 10 A over 30 cm; the practical limit is the 10 A rating of the barrel connector itself.

More in AC Extension Cords

Similar items