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Black USB-A to 2.5mm DC barrel power cable 120cm long

eForChina

eForChina USB Male to DC 2.5 x 0.7mm Power Cable 120cm

SKU CH-XC17-QG7CW

A USB-to-DC power cable with a 2.5 mm outer and 0.7 mm inner connector, 120 cm long

  • Adapter typePower Adapter
  • Powers devices from any USB port via 2.5 mm × 0.7 mm DC plug
  • 120 cm cable reaches sockets across a desk without strain
  • 5 mm outer and 0.7 mm inner diameters match many small electronics
  • Simple USB male connector needs no extra adapter or driver
  • New condition ensures reliable contact from first use

USB-to-DC power adapter for 2.5 mm devices

This cable converts a standard USB-A port into a 2.5 mm by 0.7 mm barrel connector. It suits devices such as routers, small speakers or LED strips that draw power from a 5 V USB source. The 120 cm length gives enough reach for desk or wall-socket arrangements.

Steady 5 V delivery within USB current limits

Because the cable passes USB bus power directly, output voltage stays at the host port’s 5 V and current is limited by the upstream controller. There is no internal regulation or boost circuitry, so sustained load is capped at what the USB port can reliably supply. Devices requiring higher voltage or current than the port provides will not operate correctly.

Simple moulded construction with fixed connectors

Both ends use moulded strain reliefs; the USB-A plug and the 2.5 mm barrel jack are not detachable. The 120 cm wire runs between them without inline switches or indicators. Polarity follows the common centre-positive arrangement implied by the 0.7 mm centre pin, so verify the device’s marking before connecting.

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
Adapter typePower Adapter

Questions about this item

Does the cable get warm when powering a device continuously?

The cable is a passive USB male to DC 2.5 x 0.7mm power lead with no active electronics, so it does not generate noticeable heat during normal operation.

What must the host port supply for this cable to work?

A standard USB-A port delivering 5 V is required; the cable simply passes that voltage to the 2.5 mm outer, 0.7 mm inner barrel connector.

Will this cable fit the 2.5 mm barrel jack on my older router?

Yes, if the router uses a 2.5 mm outer and 0.7 mm inner diameter barrel jack, the connector matches and the 120 cm length gives flexible placement.

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