If you’ve ever crawled behind a DVR, reached under a cabinet, or climbed a ladder just to unplug a camera, this little cable is for you.

The DC5521 Extension Cable With Switch from Range Technology Co is a simple accessory that puts an on/off switch in the middle of your 12V DC power line. You don’t have to unplug anything to cut power to a device, and it costs $14.99.

What Is It?

It’s a DC power extension cable with a built-in inline switch. The “5521” in the name refers to the 5.5 x 2.1mm barrel connector, the most common plug in 12V security and lighting equipment. It’s sold for LED lamps, but the product page makes clear it goes well beyond that: you can use it to control your CCTV cameras, or anything that runs on DC 12V power.

Why You’ll Want One

1. Switch off a camera without unplugging it.
Sometimes you need to power-cycle a camera, such as when a feed freezes or you’re troubleshooting. Flip the switch off, wait a few seconds, flip it back on. No more tugging on connectors.

2. Control cameras individually.
With several cameras on one system, an inline switch on each lets you turn off just the one you need, whether you’re repositioning it, cleaning the lens, or testing it.

3. Add convenience to LED lighting.
Many 12V LED lamps and strips have no switch of their own. This cable gives you one, placed wherever it’s easiest to reach.

4. Extend your reach.
As an extension cable, it also helps when your power adapter sits a little too far from the device. You can move the switch to a spot that’s easy to get to instead of leaving it buried behind equipment.

5. Works with more than cameras.
Anything on a 12V DC supply with a matching barrel connector can use it, including small fans, routers and modems with 12V adapters, and hobby or DIY projects.

How to Use It

1. Check your device’s voltage and plug size. You want 12V DC with a 5.5 x 2.1mm barrel connector.
2. Plug the power adapter’s DC output into the cable’s female end.
3. Plug the cable’s male end into your camera, LED lamp, or other device.
4. Use the inline switch to turn power on or off.

A Quick Safety Tip

Before connecting a device, confirm that your power adapter’s voltage is 12V and that the device’s current draw is within what the adapter supplies. Inline switches have current limits, so a high-draw device such as a PTZ camera with heaters or IR lights is worth checking before you rely on one. If you’re unsure, contact us and we’ll help you match the cable to your setup.

Pair It With Other Range Technology Co Accessories

This cable pairs well with other items in our CCTV accessories lineup:

• QeaRim 12V 2A Power Adapter ($12.99): a dependable supply for cameras and other 12V devices.
• 12V 5.5×2.1mm Female DC Power Socket Jack, 8-pack ($8.99): for custom wiring jobs.
• 12V DC 5.5 x 2.1mm Power Pigtail Cable, 8-pack ($4.99): handy for building or repairing power connections.

The Bottom Line

At $14.99, the DC5521 Extension Cable With Switch is an inexpensive upgrade that makes your CCTV cameras, LED lamps, and other 12V gear easier to control. It comes in several colors, so you can choose the one that suits your setup.

Ready to order? Visit rangetechnologyco.com to add it to your cart, or contact the Range Technology Co team with questions about your setup.