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Ten small rectangular adapters with a USB-A plug on one end and a 5.5 x 2.1 mm barrel connector on the other

eForChina

eForChina 5.5 x 2.1mm Male to USB 2.0 Male DC Power Gender Changer (10 PCS)

SKU CH-ARDQ-D5BWG

Pack of ten DC power gender changers converting 5.5 x 2.1 mm male plugs to USB 2.0 male connectors for portable power routing

  • Adapter typePower Adapter
  • Powers 5.5 x 2.1 mm devices from any USB 2.0 port
  • Works immediately with no drivers or configuration needed
  • Fits in a pocket at just 40 x 12 x 8 mm
  • Durable PC-and-metal construction withstands daily use
  • Ten adapters included for multiple devices or spares

10-Pack DC-to-USB Power Adapters

This set contains ten gender changers that convert a 5.5 x 2.1 mm DC barrel plug into a USB 2.0 Type-A male connector. They are intended for users who need to power small DC devices from standard USB ports on computers, hubs or chargers. Each unit is ready to use without drivers or configuration.

PC-and-Metal Build with Compact Form

The adapter housing uses a PC-and-metal construction measuring 40 x 12 x 8 mm, making it light enough to carry in a laptop bag or tool kit. The rigid barrel jack and USB-A plug hold their shape during repeated insertion cycles, while the short body keeps cable strain low on crowded power strips or hub ports.

Replaces Single Loose Dongles

Buyers who currently rely on individual barrel-to-USB cables can consolidate spares into this multi-pack for bench testing, field repairs or multi-device setups. The jump is worthwhile when several devices share the same 5.5 x 2.1 mm input and USB power is already available. Not suited for applications needing a locking barrel jack or higher current than a standard USB 2.0 port supplies.

How it compares

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

Price $7.99
Cheaper than about 85% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

What does the USB 2.0 interface limit in practice?

The USB 2.0 male end provides a 5 V supply at the port's standard current, so the adapter can only pass what the host port allows.

What clearance does the 40x12x8 mm body need to fit?

The moulded housing measures 40 mm long, 12 mm wide and 8 mm thick, so allow at least that much space around the DC jack and USB port.

How is the gender changer installed, and what step is often missed?

Push the 5.5 x 2.1 mm male barrel into the device's DC jack, then plug the USB 2.0 male into a powered port; the step often missed is confirming the host port is actually delivering power.

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