eForChina
eForChina Big Square Female 1st Gen to 7.9x5.5mm Female Power Adapter Cable 10cm
Converts a first-generation square female power port to a 7.9 x 5.5 mm female connector in a compact 10 cm cable
- Changer TypePower Adapter
- Converts first-generation square plug to 7.9 x 5.5 mm jack
- 10 cm cable keeps desk tidy and portable
- Female-to-female design links two power connectors directly
- Compact adapter fits in any laptop bag pocket
- Brand-new unit delivers reliable power connection
What this adapter connects
This power adapter cable converts a first-generation square female connector to a 7.9 x 5.5 mm female interface. It is designed for laptop and notebook users who need to match an existing power source to a different input. The 10 cm length keeps the connection compact for travel or desk use.
Thermals noise and power
As a passive cable, it generates no heat and produces no audible noise during operation. Power draw is determined entirely by the connected supply and laptop, not by the adapter itself. The lightweight construction adds no thermal load to the charging setup.
Connector compatibility check
The adapter only works when the source side is a first-generation square female plug and the device side accepts a 7.9 x 5.5 mm female jack. Buyers whose laptops use a different barrel size or a proprietary tip cannot use this cable.
Highlights
- Converts first-generation square plug to 7.9 x 5.5 mm jack
- 10 cm cable keeps desk tidy and portable
- Female-to-female design links two power connectors directly
- Compact adapter fits in any laptop bag pocket
- Brand-new unit delivers reliable power connection
Specifications
| Changer Type | Power Adapter |
|---|
Questions about this item
How do I connect the 7.9 x 5.5 mm female end of this 10 cm adapter to my laptop power port?
Plug the square first-generation female connector into the laptop's original power tip, then insert your charger's 7.9 x 5.5 mm male plug into the adapter's matching female socket; the short cable keeps strain low.
Will the female jack on this adapter wear out and need replacement after repeated plugging?
The connector is a passive metal socket rated for typical insertion cycles; no active components degrade, so replacement is only needed if the jack becomes loose or bent.
At what current does the 10 cm cable length start to cause noticeable voltage drop under sustained load?
The 10 cm length keeps resistance minimal; measurable drop only appears at currents well above typical laptop draw, so the adapter itself is not the limiting factor.
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