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Black cylindrical power adapter with 4.5 x 3.0mm female to 5.5 x 2.1mm male connectors

eForChina

eForChina 4.5 x 3.0mm to 5.5 x 2.1mm Power Adapter Black

SKU CH-QFRE-WN3GC

Converts a 4.5 x 3.0mm female port to a 5.5 x 2.1mm male plug for laptop power

  • Adapter typePower Adapter
  • Product colorBlack
  • Connects 4.5 x 3.0 mm power ports to 5.5 x 2.1 mm plugs
  • Compact and lightweight design fits easily in a laptop bag
  • Brand-new condition ensures reliable performance from first use
  • Female-to-male gender changer adapts existing cables without replacement
  • Black finish matches common laptop charger aesthetics

eForChina Power Adapter 4.5 x 3.0mm to 5.5 x 2.1mm

This passive adapter converts a 4.5 x 3.0mm female barrel jack to a 5.5 x 2.1mm male plug. It lets you connect a power source with the larger 5.5mm connector to a laptop or device that requires the smaller 4.5mm input. The unit is black, lightweight and intended for portable use.

Suits owners needing to bridge these two specific

Builders who require voltage conversion, polarity switching or a different tip diameter cannot use this adapter. It does not regulate power or change electrical characteristics. Buyers with USB-C, proprietary multi-pin or other non-barrel power inputs should look for a different solution.

Fixed 4.5mm female to 5.5mm male barrel conversion

The adapter provides a direct mechanical and electrical pass-through between a 4.5 x 3.0mm socket and a 5.5 x 2.1mm tip. No other connector configurations or interface types are supported by this part.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 90% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Product colorBlack
Adapter typePower Adapter

Questions about this item

Will the 4.5 x 3.0mm female socket accept my laptop's original power tip?

Yes, the adapter presents a 4.5 mm outer and 3.0 mm inner diameter female barrel that matches tips of that exact size.

How do I connect this adapter between my charger and laptop without damaging the pins?

Align the 5.5 x 2.1 mm male plug with the charger's female jack, push straight in until seated, then insert the laptop tip into the 4.5 x 3.0 mm female end; forcing at an angle bends the centre pin.

Does the 5.5 x 2.1 mm male plug wear out and need replacement after repeated insertion cycles?

The brass contacts are rated for thousands of mating cycles; under normal use the plug does not require scheduled replacement.

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