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PSU

Power Supply Units (PSU) convert power supplied so that a server’s internal components can function as intended. They operate across different wattages dependent on the servers components. 

At ITinStock, we hold a huge variety of high-quality, new and refurbished PSUs. Whether you're after models from leading brands like Dell, Fujitsu, HPE, or any other major brand, we have plenty of models to suit your business needs. Please contact us if you are unsure on compatibility. 

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Why You need a Refurbished PSU

A refurbished PSU will still convert power, just like a brand-new PSU would. In fact, a refurbished PSU functions exactly the same, whilst regulating voltage and current, only at a fraction of the cost.

A good PSU ensures the delivery of stable voltage and current, providing the energy needed for system components to operate smoothly. In addition, PSUs provide safety features like overload protection and short-circuit protection, which prevent damage caused by power fluctuations.

For enterprise businesses and SMEs, an extra PSU is often used in servers as a redundancy measure. That means should one PSU stop functioning, the second PSU can continue operations without any server damage or downtime.

Why Choose Refurbished PSUs from ITinStock?

Each of our PSUs undergo rigorous testing to make sure it operates reliably and safely. When we are satisfied that each part functions as intended, we will discuss any compatibility requirements for your system, including your PSU efficiency needs. We can then organise fast delivery to the UK and worldwide. Our expert support team are happy to help with any requirements and post-service support you need.

Complement Your Setup

Complete your server infrastructure with our other IT equipment:

  • CPUs Make sure you have the right CPU for your infrastructure. Take a look at our powerful CPUs to help speed up your server operations.
  • RAID Controllers Protect your stored data from damage caused by a power outage with a RAID controller, pairing well with your PSU against redundancy.
  • Rack Servers Use your PSU to convert power for a rack server. These servers are stored in a rack and help both store and retrieve business data.

Frequently Asked Questions

What does a server PSU actually do?
A PSU (Power Supply Unit) is a crucial hardware component that converts incoming AC power from the electrical outlet into the DC power required by the server's internal components. That means a PSU gives power to the server's motherboard, processors, drives, and other components. Beyond simply delivering power, a quality PSU ensures stable voltage and current delivery and includes safety features such as overload protection and short-circuit protection, preventing power fluctuations or unexpected events from damaging sensitive computer hardware. Choosing an underpowered PSU could risk system instability, unexpected shutdowns, and potential damage to other components.

Is a refurbished PSU reliable and safe?
Yes. All our refurbished PSUs are thoroughly tested and verified before they are made available for sale. They undergo comprehensive functional checks including power delivery testing, outlet verification, monitoring feature validation (for intelligent units), and safety inspections to ensure they perform reliably. This is vital for any SME or enterprise business where uptime is critical. Buying refurbished is a great way to get a high-quality PSU at a significantly lower price without sacrificing reliability or performance.

What is a redundant PSU and does my server need one?
A redundant PSU configuration means installing two power supply units in the same server, either of which can independently carry the full load. A redundant server power supply provides an extra layer of reliability by allowing your server to continue operating even if one PSU fails. This is especially useful in environments where uptime is critical, such as business networks or data centres. Redundant PSUs can be hot-swapped, meaning you can replace a faulty unit without shutting down the server, reducing the risk of downtime and data loss. For servers running business-critical applications, databases, or customer-facing services, redundant power supplies provide fault tolerance, ensuring continuous operation even if one PSU fails.

What happens if my refurbished PSU develops a fault?
If your refurbished PSU develops a fault after purchase, our support team will work with you for a replacement, refund or alternative positive resolution. Don't hesitate to reach out to our support team at ITinStock if you run into any issues. Simply contact us at sales@itinstock.com or call +44 20 4631 3555.

Find Your Ideal PSU Today

Browse our range of PSUs or contact our team for expert advice on selecting the right power solution for your needs.

Phone: +44 (0)20 4631 3555
Email: hello@itinstock.com

Contact our team today

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