Most desktop monitors use a standard AC cord with an IEC C13 connector on the monitor end and a three-prong household plug (NEMA 5-15P) on the wall end. You’ll also see:

• Figure-8 (C7/C8): A two-prong, oval “figure-8” style used on some slim or smaller displays.
• External DC adapters: Some monitors use a power brick that outputs 12V, 14V, or 19V via a barrel plug.
• C13-to-C14 extensions: Common for connecting a monitor to a UPS or PDU.

To confirm, match the inlet shape on your monitor and check the power label for voltage and current. Typical cords are 18AWG or 16AWG and rated around 10A/125V in the U.S. Choosing a UL-listed cord with the correct connector and rating helps ensure safe, reliable use.

A quick check can point you to the right cord:

1. Identify the connector: Look at the monitor’s inlet—C13 (three-slot), C8 (figure-8), or a round DC barrel.
2. Read the power label: Note voltage and current requirements; match or exceed the cord’s rating (e.g., 10A/125V).
3. Pick length and gauge: Choose the shortest length that fits your setup. 16AWG is thicker and can be helpful for longer runs; 18AWG is common for everyday use.
4. Check safety listings: UL or equivalent listings indicate tested compliance.
5. Match your outlet type: In the U.S., NEMA 5-15P is standard.

When a monitor uses an external adapter, match the output voltage, polarity, and plug size exactly. If you’re unsure, reviewing the user guide can be helpful.

Names vary, but a few common terms you’ll see include:

• AC power cord: A general term for cords that run from the wall to the monitor.
• IEC C13 power cable: The typical three-slot cord for many monitors (pairs with a standard three-prong wall plug in the U.S.).
• Figure-8 power cord (C7/C8): A two-prong, oval connector used on some models.
• DC power adapter: An external “power brick” with a barrel plug for monitors that require DC input (e.g., 12V, 14V, or 19V).
• C13-to-C14 extension: Used to connect a monitor to a UPS or power distribution unit.

Because names can overlap, always verify the connector type and power specs listed on your monitor.

Swapping can work in some cases, but it depends on compatibility:

• AC cords (C13 or C7): If two monitors use the same connector type and the replacement cord’s voltage and amperage ratings meet or exceed your monitor’s needs, they’re often interchangeable.
• DC adapters: These aren’t universally interchangeable. Match output voltage, polarity, plug size, and ensure the adapter’s current rating is equal to or higher than required.

Always check the label on the monitor and the cord/adapter before swapping. Using a mismatched cord or adapter can lead to poor performance or damage. If there’s any uncertainty, consulting the product documentation can help clarify what’s compatible for your model.

The main differences are shape, grounding, and use case:

• Connector shape: C13 has a three-slot, rectangular inlet; C7 is a two-prong, rounded “figure-8.” They’re not cross-compatible.
• Grounding: C13 cords include a ground connection for devices designed to be grounded. C7 cords are ungrounded.
• Typical use: Many larger desktop monitors use C13; some smaller or slimmer displays use C7/C8.

Choose the cord that matches the inlet on your monitor. If the device requires grounding, stick with a grounded solution like C13. As with any cord, verify the power rating (e.g., amperage and voltage) and look for safety certifications to support reliable, everyday use.