POWER SUPPLY
( number of products: 194 )
Power Supply HP ProLiant 460W | 503296-B21

Power Supply HP ProLiant 460W | 511777-001


Power Supply HP ProLiant 460W | 536404-001


Power Supply HP ProLiant 460W | 656362-B21


Power Supply HP ProLiant 460W | 660184-001


Power Supply HP ProLiant 1200W | 656364-B21


Power Supply HP ProLiant 1200W | 660185-001


Power Supply HP ProLiant 800W | 720480-B21


Power Supply HP ProLiant 800W | 754382-001


Power Supply HP ProLiant 290W | 823805-001


Power Supply HP ProLiant 350W | 821243-001


Power Supply HP ProLiant & SimpliVity 1600W | 830272-B21


Power Supply HP ProLiant & SimpliVity 1600W | 863373-001


Power Supply HP ProLiant 500W | 866726-001


Power Supply HP ProLiant 500W | 865408-B21


Power Supply HP ProLiant 500W | 866729-001


Power Supply HP ProLiant & SimpliVity 800W | 865414-B21


Power Supply HP ProLiant & SimpliVity 800W | 866730-001


Power Supply HP ProLiant & SimpliVity 800W | 865428-B21


Power Supply HP ProLiant & SimpliVity 800W | 865438-B21


Power Supply HP ProLiant & SimpliVity 800W | 866793-001


Power Supply HP BladeSystem 2400W | 500242-001-RFB


Power Supply HP BladeSystem 2650W | 733459-B21-RFB


Power Supply HP BladeSystem 2650W | 733830-001-RFB


Power Supply HP ProLiant 460W | 503296-B21-RFB


Power Supply HP ProLiant 460W | 511777-001-RFB


Power Supply HP ProLiant 460W | 536404-001-RFB
Server Power Supplies – Guaranteed Continuous Operation of Your Data Center
Server power supplies are one of the most critical components of IT infrastructure. Unlike consumer-grade units, power supplies dedicated to servers (e.g. Dell, HPE, Lenovo) are designed for continuous operation under heavy load. At Esus IT, we offer a wide range of Hot-Swap power supplies with high energy efficiency (80 PLUS Platinum and Titanium certifications), minimizing downtime risk and optimizing your company’s energy costs.
Why Does Choosing a Server Power Supply Matter?
A properly selected power supply is not just about wattage, but above all about the stability of the entire system. Professional power units offer technologies not found in standard PC solutions.
Redundancy and Hot-Swap Function
Most modern rack and tower servers support dual power supply configurations (1+1 redundancy). Thanks to the Hot-Swap feature, you can replace a faulty power module without shutting down the server. This is a critical solution for systems that must remain available 24/7.
Energy Efficiency and 80 PLUS Certification
In data centers, where many machines operate, heat generation and power consumption create significant costs. By choosing power supplies with Platinum efficiency (over 94%) or Titanium efficiency (over 96%), you can effectively reduce electricity bills and lower cooling requirements in the server room.
Server Power Supplies for Dell, HPE, Fujitsu and Lenovo
In our assortment you will find:
- Dell PowerEdge: Power supplies ranging from 350W to 2400W and higher.
- HPE ProLiant: Common Slot and Flex Slot units known for exceptional durability.
- Lenovo ThinkSystem: Modern high-density power modules.
FAQ – Frequently Asked Questions About Server Power Supplies
1. Can I install a higher wattage power supply than the current one?
Yes, as long as it is compatible with the specific server model and chassis. The server will only draw as much power as needed, while a more powerful unit provides additional headroom for future upgrades such as extra CPUs or drives.
2. What does the “Power Supply Mismatch” error mean?
This message usually appears in dual power configurations when installed power supplies differ in wattage (e.g. 495W and 750W) or firmware versions. For proper redundancy, both units should be identical.
3. Are server power supplies universal?
Unfortunately not. Most manufacturers (Dell, HPE) use proprietary connectors and form factors. Always match the power supply by part number (P/N or Spare Part Number) or server model.
4. What is the difference between AC and DC power supplies in a server environment?
Most companies use AC (alternating current) power supplies. DC (direct current, typically -48V) units are mainly used in telecommunications and specialized data centers powered directly by battery systems.


