Server Power Supplies – High-Quality PSUs for Servers
Server Power Supply Prices
Supermicro
PWS-920P-1R2 Supermicro Active 920W 1U Server PSU
In stock
Supermicro
PWS-702A-1R Supermicro Active 700W 1U PSU
In stock
APC
BK325I APC 325 350VA Offline (Standby) UPS/USV
In stock
IN WIN Development
3RAMAP026501 IN WIN Development Active 1200W PSU
In stock
IN WIN Development
3RAMAP044300 IN WIN Development Active 1600W 1U PSU
In stock
PowerWalker
10120049 PowerWalker VI 850 SH 850VA Line-Interactive UPS/USV
In stock
APC
BE400-GR APC 400VA Offline (Standby) UPS/USV
In stock
Eaton
9PX6KIBP Eaton 6000i HotSwap 6000VA Online (Double-Conversion) UPS/USV
In stock
EVER
W/SL00RM-002K00/07 EVER 2000 USB HID 19 2000VA Line-Interactive UPS/USV
In stock
Supermicro
PWS-1K62P-1R Supermicro Active 1620W 1U PSU
In stock
APC
SRTL5KRM2UI APC 5000VA On-line UPS/USV
In stock
Supermicro
PWS-1K22-1R Supermicro Active 1200W 1U PSU
In stock
CyberPower Systems
PR3000ERT2U CyberPower Systems 3000VA Line-Interactive UPS/USV
In stock
Supermicro
PWS-504P-1R2 Supermicro Active 600W 1U Server PSU
In stock
APC
SUA1000RMI1U APC 1000VA Line-Interactive UPS/USV
In stock
Eaton
5E1200UF Eaton 1200 USB FR 1200VA Line-Interactive UPS/USV
In stock
SALICRU
699CA000003 SALICRU SLC-1000-TWIN PRO2 1000VA Online (Double-Conversion) UPS/USV
In stock
Vertiv
EDGE-1500IRT2UXL Vertiv 1500VA Line-Interactive UPS/USV
In stock
APC
SRV3KRIRK APC 3000VA Online (Double-Conversion) UPS/USV
In stock
Supermicro
PWS-781-1S Supermicro Active 780W 1U Server PSU
In stock
APC
SRT3000UXI-NCLI APC 3000VA Online (Double-Conversion) UPS/USV
Out of stock
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Frequently Asked Questions about Server PSU:
Active redundancy: Both power supplies run simultaneously and share the load. If one fails, the other must take over the full load, which should be considered in power planning. Passive redundancy: Only one power supply is active at a time, while the other remains on standby and takes over only in case of failure.
According to EU regulations, since January 1, 2024, servers must be equipped with Titanium-certified power supplies. There are only a few exceptions to this requirement.
No, desktop power supplies are not designed for continuous 24/7 operation. This applies to all server components, which are built for high durability and reliability.
Yes, both power supplies should be actively powered. Ideally, they should be connected to different power circuits to ensure uninterrupted failover in case of a failure.
First, check whether the power supply is connected to a working power circuit. If problems persist, test it with a power supply tester or replace it temporarily with a working model.
Calculate the total power consumption of all components—including CPU, GPU, hard drives, RAM, and fans—and add an additional 20–30% buffer to ensure a stable power supply.
Types of Server Power Supplies for Your Power Management
Choosing the right Server Power Supply affects performance, maintenance, and operating costs. Important factors include modularity, redundancy, and energy efficiency.
- Modular vs. Non-Modular Power Supplies: Modular power supplies allow flexible cabling, improve airflow, and make maintenance easier. Non-modular models have permanently attached cables, simplifying installation but offering fewer customization options. In professional IT environments, modular Server Power Supplies are usually the better choice.
- Redundant Power Supplies for Maximum Reliability: Redundant Server Power Supplies consist of two or more units. In case of failure, the second power supply automatically takes over. Hot-swappable models allow replacement during operation without downtime or rebooting.
- High-Efficiency Power Supplies with 80 PLUS Certification: Efficient power supplies reduce electricity costs and heat generation. 80 PLUS-certified models achieve efficiency rates of over 90%, providing long-term energy savings. Depending on the certification level—Bronze, Silver, Gold, Platinum, or Titanium—businesses benefit from a sustainable and cost-efficient power supply.
Key Factors When Selecting a Reliable Server Power Supply
Choosing the right power supply affects a server's performance, stability, and operating costs. There are several factors to consider when making your selection.
- Power Output (Wattage): The power supply must reliably support all components while offering sufficient reserves for future expansions. Too little power leads to instability, while an oversized power supply results in unnecessary costs.
- Compatibility: Not every power supply fits every server. Manufacturers have specific requirements for connectors and specifications. Ensure compatibility with your existing hardware.
- Efficiency and Heat Management: Efficient power supplies reduce energy costs and heat generation, easing the cooling system and extending the lifespan of server components.
- Safety Features: Protection mechanisms such as overload, short-circuit, and surge protection safeguard hardware from damage and prevent failures—particularly crucial for mission-critical IT systems.
- Form Factors: Power supplies must fit the server chassis. EPS12V is common for larger servers, while EPS1U and ERP2U4 are designed for compact 1U and 2U enclosures. The right choice ensures smooth installation and stable operation.
Maintenance Tips to Extend the Lifespan of Server Power Supplies
Regular maintenance and optimal cooling are essential for maximizing the lifespan of a Server Power Supply. Key factors to consider include:
- Airflow and Cooling: Adequate ventilation prevents overheating and extends the lifespan of components. Ensure that the server room is well-ventilated and that cooling vents are not blocked.
- Avoiding Dust and Contamination: Dust can clog fans and components. Regularly clean the power supply with compressed air to ensure efficient cooling.
- Regular Load Testing: A power supply that operates at its maximum capacity for extended periods wears out faster. Regularly check power load and upgrade to a higher-capacity model if necessary.
- Ensuring a Stable Power Supply: Voltage fluctuations or power outages can damage power supplies. A UPS (Uninterruptible Power Supply) protects against sudden failures and increases operating security.
- Maintenance and Replacement Intervals: A power supply should be inspected every 3–5 years and replaced if there are signs of overheating, unusual noises, or unstable performance.
Server Hardware is your expert for high-performance IT solutions – from power supplies for servers to storage servers and storage devices solutions to rack infrastructure, server GPUs and Intel Xeon servers or AMD EPYC servers. Trust our experience in server software, network technology and state-of-the-art server hardware – we provide you with individual and expert advice!
Not Sure Which High-Quality Server Power Supply is Right for You? We are happy to assist you in finding the best Server Power Supply for your needs. Contact us today for expert consultation!