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Black adapter cord with 4.5 x 3.0mm female and 5.5 x 2.1mm male connectors

Vszerda

Vszerda 4.5 x 3.0mm Female to 5.5 x 2.1mm Male Power Adapter Cord Black

SKU CH-JX9R-A4EJZ

Connects a 4.5 x 3.0 mm female jack to a 5.5 x 2.1 mm male plug for laptop power

  • Connects 4.5 x 3.0mm devices to 5.5 x 2.1mm power sources
  • Compact and lightweight design makes it easy to carry
  • Brand new condition ensures reliable performance
  • Female-to-male configuration adapts existing cables without replacement
  • Simple plug-in use requires no tools or setup

What this adapter does

This Vszerda power adapter cord converts a 4.5 x 3.0mm female connection to a 5.5 x 2.1mm male plug. It lets you connect a power source with the larger barrel to a laptop or notebook that requires the smaller barrel size. The cord is designed for users who need to match differing DC jack dimensions on portable devices.

Thermals noise and power draw

As a passive cable assembly, the adapter generates no noise and draws no power of its own. It simply conducts the supply voltage and current from the source to the device without active components. Normal use adds no measurable heat or audible output to the system.

Behaviour under sustained load

The adapter maintains a continuous electrical path during extended charging or operation sessions. Its construction supports steady current flow without intermittent contact, provided the source and device remain within their own ratings. No active cooling or duty-cycle limits apply to the cord itself.

How it compares

Measured against everything we stock in Jumper & Adapter Power Cords, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 60% of the 402 comparable items (median $13.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I connect this adapter between my laptop and power supply?

Plug the 5.5 x 2.1 mm male end into your power supply tip, then insert your laptop's 4.5 x 3.0 mm connector into the female side. The step often missed is fully seating the male barrel until it clicks, otherwise the connection stays intermittent.

Will the connector tips wear out and need replacement?

The barrel tips are solid metal with no moving parts, so they do not wear out under normal use. Only physical damage such as bent pins or cracked housing would require replacing the adapter.

What happens if I run a high-wattage laptop through this adapter for hours?

The adapter passes whatever current the supply and laptop negotiate; it has no active circuitry to limit power. Sustained heavy loads are limited by the contact resistance of the 4.5 x 3.0 mm and 5.5 x 2.1 mm interfaces, which can warm up if the fit is loose.

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