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Small rectangular USB-to-DC adapter in black plastic and metal, about 47 by 18 by 11 mm

eForChina

eForChina USB Female to 5.5 x 2.1mm Female Plug Adapter

SKU CH-PBWF-TEP01

Converts a USB port to a 5.5 x 2.1 mm DC jack, measuring 47 x 18 x 11 mm and weighing about 10 g

  • Adapter typePower Adapter
  • Connect USB devices to 5.5 × 2.1 mm barrel power sources
  • Pocket-sized at 47 × 18 × 11 mm for easy transport
  • Weighs only 10 g so it adds negligible bulk
  • PC and metal construction resists daily wear
  • Simple plug-and-play adapter needs no drivers

USB Female to 5.5 x 2.1mm Adapter

This adapter converts a USB female port to a 5.5 x 2.1mm female plug for notebook power connections. It is intended for users who need to connect a barrel-style power source to a USB interface. The compact form factor makes it suitable for mobile setups and travel use. Builders requiring a different barrel diameter or polarity should look elsewhere.

Installation and Common Issues

The unit is a passive connector with no drivers or configuration required. Simply insert the USB male plug and the 5.5 x 2.1mm male plug into the respective female ports. The small 47x18x11mm housing can be tight in crowded port clusters, so verify clearance before purchase. No power conversion or regulation is performed by this adapter.

Capacity and Headroom

The adapter passes through the voltage and current provided by the connected USB source up to the limits of the 5.5 x 2.1mm plug specification. It does not increase available power or provide voltage regulation. Users drawing high current from a standard USB port may encounter voltage drop or port shutdown. The PC and metal construction supports typical notebook power loads within USB specifications.

How it compares

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

Price $4.99
Cheaper than about 93% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

How do I confirm the adapter is passing power after I plug it in?

Connect the USB source and a 5.5 x 2.1 mm device; the connected device should power on or charge, showing the link is active.

What comes in the box and what extra parts might I need?

The adapter itself is included; you must supply a USB power source and a 5.5 x 2.1 mm DC cable or device.

Which version of this adapter should I choose for my notebook?

This single model converts USB female to a 5.5 x 2.1 mm female plug, so choose it when that exact conversion is required.

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