5 Things to Know About Extension Cords for Electronics

Keep extension cords under 25 feet for sensitive electronics Voltage drop is real. A 50-foot, 16-gauge cord at 10 amps loses about 10% voltage, which can cause computers, audio gear, or medical devices to act flaky or get damaged.

Use at least 14-gauge wire for anything over 5 amps Most power supplies are specced for ±10% voltage. Running on the edge leads to brownouts, random restarts, dim displays, or fried power bricks.

Avoid 16-gauge cords for electronics They are too thin for reliable power delivery over any distance. Stick with 14-gauge or heavier.

If you need 50 feet or more, step up to 12-gauge Even then, plug in only one high-power device. Longer cords increase voltage drop and risk.

Extension cords are for temporary use, not permanent setups Move the device closer instead of relying on a long cord. Fixed installations should use proper wiring.