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Power cords may look similar at first glance, but different devices require different connector types, voltage ratings, and cable constructions.
Using the wrong power cord can lead to compatibility issues, unstable power delivery, overheating, or equipment damage.
From desktop PCs and gaming systems to servers and data center equipment, understanding common computer power cord types makes it easier to choose the right cable for every setup.
What Is a Computer Power Cord?
A computer power cord connects an electronic device to an AC power source.
Most modern computer equipment uses standardized connectors defined by the IEC 60320 standard, allowing manufacturers to build products compatible across global markets.
A typical power cord includes:
- A wall plug connected to the local electrical system
- A flexible insulated cable
- An IEC connector attached to the device
Different combinations are used depending on power requirements, regional standards, and device types.
Understanding IEC 60320 Power Cord Standards
IEC 60320 is the most widely used international standard for appliance couplers and computer power connectors.
The “C” designation identifies connector families commonly found in PCs, monitors, servers, PDUs, and networking equipment.
The most common IEC power cord combinations include:
| Connector Type | Typical Use | Current Rating |
| C5 / C6 | Laptop adapters, projectors | 2.5A |
| C7 / C8 | Game consoles, TVs, audio devices | 2.5A |
| C13 / C14 | Desktop PCs, monitors, printers | 10A |
| C15 / C16 | High-temperature equipment | 10A |
| C19 / C20 | Servers, PDUs, data center hardware | 16A–20A |
IEC connectors are designed so matching male and female connectors fit together safely. For example, a C13 connector mates with a C14 inlet, while C19 pairs with C20.
C13 and C14 Power Cords
The Most Common Computer Power Cord
The C13 to C14 power cord is widely used for desktop computers, monitors, printers, switches, and UPS systems. It has become the standard power connection for most IT equipment.
Common Applications
- Desktop PCs
- Gaming computers
- LCD monitors
- Office printers
- Network switches
- Basic server equipment
Features
- Rated up to 10A and 250V
- Supports global IEC compatibility
- Available with regional wall plugs such as NEMA, UK, EU, and AU standards
C15 and C16 High-Temperature Power Cords
C15 connectors are similar to C13 connectors but include a notch design for high-temperature applications. They are commonly used for networking hardware, PoE switches, server racks, and equipment generating more heat.
Compared with standard C13 cables, C15 power cords support higher operating temperatures.
| Feature | C13 | C15 |
| Temperature Rating | 70°C | 120°C |
| Shape | Standard | Notched |
| Common Devices | PCs, monitors | Servers, PoE switches |
C19 and C20 Power Cords for Data Centers
C19 and C20 connectors are designed for high-power equipment commonly found in enterprise and data center environments. These cables support higher current loads than C13/C14 combinations.
| Category | Details |
| Typical Applications | Blade servers |
| High-capacity PDUs | |
| Enterprise UPS systems | |
| Mining equipment | |
| AI servers and GPU clusters | |
| Features | Higher current capacity |
| Thicker cable construction | |
| Better suited for rack power distribution |
As server power demands continue increasing, C19/C20 power cords are becoming more common in modern data centers.
C5 Cloverleaf Power Cords
The C5 connector is often called the “cloverleaf” or “Mickey Mouse” connector because of its shape.
These cords are widely used for lightweight electronic equipment.
Common Devices
- Laptop power adapters
- Portable projectors
- Small networking devices
Features
- Compact design
- Lightweight construction
- Lower current rating
C7 Figure-8 Power Cords
C7 connectors are also known as figure-8 power cords because of their rounded dual-pin shape. These cables are common in consumer electronics.
| Category | Details |
| Common Applications | Game consoles |
| DVD players | |
| TVs | |
| Audio systems | |
| Features | Two-pin ungrounded design |
| Small and flexible | |
| Used for low-power devices |
Regional Plug Types
While IEC device connectors are standardized globally, wall plugs vary by country and region.
- North America
NEMA plugs are commonly used in the United States and Canada.
Common examples include NEMA 5-15P and NEMA 5-20P.
- Europe
Many European countries use CEE 7/7 plugs.
- United Kingdom
The UK commonly uses BS 1363 plugs with fused protection.
- Australia and New Zealand
Type I plugs are commonly used under AS/NZS 3112 standards.
Power Cord Cable Types and Jacket Materials
Power cords are also classified by cable construction and insulation materials. Different jacket types are designed for indoor use, outdoor use, oil resistance, or higher flexibility.
| Cable Type | Features | Applications |
| SJT | Standard thermoplastic cable | Indoor office equipment |
| SJTW | Weather-resistant | Outdoor equipment |
| SJOW | Oil-resistant | Industrial environments |
| SVT | Light-duty cable | Small appliances |
Choosing the correct cable jacket helps improve durability and environmental protection.
How to Choose the Right Computer Power Cord
Several factors should be checked before selecting a power cord.
| Selection Factor | Details |
| Device Connector Type | C13 for standard PCs |
| C19 for high-power servers | |
| C5 for laptops | |
| C7 for consumer electronics | |
| Voltage and Current Rating | The cable must support the device’s electrical requirements |
| Thicker wire gauges for higher-power devices | |
| Regional Compatibility | Higher current ratings |
| Heat-resistant connectors | |
| The wall plug must match the local electrical standard | |
| Cable Length | Longer cables provide flexibility but may create cable management issues in racks or workstations |
| Safety Certifications | UL |
| CSA | |
| VDE | |
| CE | |
| RoHS | |
| Certification Purpose | Helps confirm compliance with regional electrical safety requirements |
Modular Power Supply Cables for Gaming PCs
Modern gaming power supplies often use modular cables that allow users to connect only the cables they need. Some newer PSUs also support ATX 3.1 and PCIe 5.1 standards with native 12V-2×6 connectors for modern GPUs.
Common modular PSU cables include:
- 24-pin motherboard cables
- CPU 8-pin cables
- PCIe 6+2 pin cables
- SATA power cables
- 12VHPWR GPU cables
Custom sleeved cables are also popular in gaming PC builds for improved airflow and cleaner cable routing.
Conclusion
Different computer power cords are designed for different power levels, temperature requirements, and regional standards.
C13/C14 cables remain the standard choice for desktop computers and monitors, while C19/C20 connectors support higher-power enterprise equipment.
Smaller connectors like C5 and C7 are widely used in laptops and consumer electronics.
Explore our full range of power cords and connectors to find the right fit for your setup. We’re always here if you need help choosing the best option.
FAQs
1. What is the most common computer power cord type?
The most common type is the C13 to C14 power cord, widely used for desktop PCs, monitors, printers, and many standard IT devices. It is the default choice for most office and home computer setups.
2. What is the difference between C13 and C19 power cords?
C13 cords are designed for standard-power devices like PCs and monitors, while C19 power cords support higher current loads and are used in servers, UPS systems, PDUs, and data center equipment.
3. Can I use any power cord for my computer?
No. You must match the correct connector type, voltage rating, and current rating. Using an incompatible power cord may cause overheating, unstable performance, or equipment damage.
4. What is a C5 (cloverleaf) power cord used for?
C5 power cords are commonly used for laptop adapters, portable projectors, and small electronic devices. They are compact and designed for lower power applications.
5. What devices use C7 figure-8 power cords?
C7 power cords are used in game consoles, TVs, DVD players, and audio equipment. They are suitable for low-power, ungrounded devices.
6. Why are C15 power cords used in high-temperature environments?
C15 connectors are designed with a higher temperature rating (up to 120°C), making them suitable for networking equipment, PoE switches, and server racks that generate more heat.
7. Do power cords differ by country?
Yes. While IEC connectors are standardized, the wall plug varies by region, such as NEMA (US/Canada), BS 1363 (UK), CEE 7/7 (Europe), and Type I (Australia/New Zealand).
8. How do I choose the right computer power cord?
You should check:
- Device connector type (C13, C19, C5, etc.)
- Voltage and current rating
- Regional plug standard
- Cable length and flexibility
- Safety certifications (UL, CE, VDE, etc.)
9. What is a modular power supply cable in gaming PCs?
Modular PSU cables allow users to connect only the required cables, improving airflow and cable management. Common examples include 24-pin motherboard cables, PCIe GPU cables, and SATA power cables.
10. Are C19/C20 power cords used in data centers?
Yes. C19/C20 cords are widely used in data centers, AI servers, UPS systems, and high-capacity PDUs due to their ability to handle higher power loads safely.