PC Power Supplies - Shop PSUs

What are PC power supplies?

A reliable PC power supply is essential for ensuring your computer's stable and efficient performance. Computer power supplies convert the alternate current from the power outlets in your home to the direct current your PC uses. They also provide power to the various components of the computer, such as hard drives, fans, and optical drives. When you shop PSU options at Newegg, consider the efficiency and features, like modular cables, silent operation, and protection mechanisms, that best suit your needs.

ATX Power Supplies Work With ATX Motherboards

ATX power supplies fit ATX motherboards and computer cases. They can provide 300W of power or more. Unlike older computer power supplies, they have a soft switch instead of a physical switch, allowing turning them on and off via software. Most models have SATA connectors to power hard drives and optical drives. They use a 20-pin power connector. These types of PC PSUs offer excellent compatibility with modern ATX motherboards.

ATX12V Power Supplies Use a 4-Pin Connector for the Processor

ATX12V power supplies look almost identical to the ATX ones but have different power connectors. The ATX12V v1.0 models use a 20-pin main connector, a 4-pin 12V connector for the processor, and a 6-pin auxiliary connector. ATX12V v2.0 power supplies use a 24-pin main connector and a 4-pin connector for the processor. These power supplies are the most common in modern computers, making them a popular choice when you shop for PSU options.

Active and Passive PFC Power Supplies Help You to Save on Energy Bills

Power factor correction (PFC) power supplies reduce the amount of reactive power your computer produces. The components of your PC cannot use reactive power, but energy companies still charge you for it. Active PFC power supplies use electronic circuits, while the passive PFC ones use inductors and capacitors. Both PFC mechanisms also distribute the power more efficiently between the components of your computer, making them a smart choice for a PC power supply.

Non-Modular vs. Fully-Modular and Semi-Modular Power Supplies

Non-modular power supplies are generally cheaper and feature several cables soldered to the same circuit board. This type of construction may obstruct airflow and cause overheating inside the computer case. Non-modular PSUs may also look unsightly if your PC case has a window. Semi-modular power supplies have fewer hardwired cables, so they tend to cause less overheating, avoiding damage to the computer's components. Modular power supplies have no hardwired cables, so you can choose which ones you want to connect. They tend to be more expensive than the other types. Whether you need a PSU computer with modularity or non-modularity, consider your airflow and cable management needs.

Redundant Power Supplies Prevent Downtime

A redundant power supply system lets your PC use two or more power supplies. Each power supply has the capability of powering the entire computer alone. If one stops working, the PC will keep running normally. It minimizes downtime and prevents damage to the internal PC components. Redundant power supplies are suitable for data center facilities and business environments where uptime is essential. For critical systems, a redundant PC power supply setup is ideal.

Overvoltage and Overcurrent Protection Protect Your PC From Damage

Many quality computer power supplies use protection mechanisms to prevent damage to the components of your PC. Overvoltage protection shuts down the PCU if it exceeds a specified voltage limit. Overcurrent protection, on the other hand, shuts down the PCU if there is excessive current.

Upgrade your PSU for your PC today and ensure your system runs smoothly and efficiently. Shop PSUs at Newegg and find the best PC power supply for your needs. Enjoy reliable performance and the peace of mind that comes with a high-quality power supply. Whether you need a computer PSU for gaming, professional workstations, or everyday use, we have the perfect solution for you. Shop PSU options now and keep your system powered up and ready to go!