Inline On/Off Switch DC Power Cable 2.1mm Male and Female Jack
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Prices updated: 14 Oct 2026
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About this product
A DC power extension cable with an inline on/off switch, fitted with a 2.1 mm male and female DC barrel connector. It is used to switch a DC supply on and off between an adapter or battery and a device, without modifying the device itself.
Specifications
- Connector
- DC barrel 2.1 mm male and female
- Switch
- Inline on/off
- Cable type
- DC power extension
Frequently asked questions
How do I check polarity before using it?
Confirm the center pin polarity of your adapter and device, since the cable passes polarity through unchanged. A mismatch can damage the device.
Does the cable change the voltage?
No. The cable only switches the connection, so the adapter voltage must match what the device requires.
