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SUPERMICRO PWS-1K22P-1R Platinum Server Power Supply 1220W 1U

Pws-1k22p-1r Supermicro 1220w 1u 80 Plus Platinum Server Power Supply

( Brand: Supermicro ), ( Manufacturer Part Number: PWS-1K22P-1R ), ( Part Type: Server Supply ), ( Form Factor: 1u ), ( Maximum Output Power: 1220 W )

Review SUPERMICRO 1220w 1u Plus Platinum Server Power Supply

The **Supermicro PWS-1K22P-1R** is a high-performance, ultra-efficient 1U server power supply designed to deliver reliable, high-density power for demanding enterprise, cloud, and data center environments. Engineered to meet the rigorous demands of modern IT infrastructure, this 1220-watt Platinum-certified power supply operates at an exceptional efficiency rating of up to 94%, ensuring minimal energy waste and significant cost savings over time. Built with Supermicro s signature reliability and precision engineering, this unit features a fully modular design, allowing administrators to easily manage and replace cables without disrupting system operations a critical advantage in high-availability environments. The power supply is equipped with a **1200W continuous output** and a **220W peak surge capacity**, providing ample headroom for high-performance workloads, including GPUs, SSDs, and multi-socket processors, while maintaining stability under heavy loads. Its **Platinum (80 PLUS Platinum) certification** not only ensures superior energy efficiency but also reduces heat generation, contributing to a cooler, more stable server environment and extending the lifespan of critical components.

The **PWS-1K22P-1R** incorporates advanced protection features, including **over-voltage, under-voltage, short-circuit, over-current, and over-temperature protection**, safeguarding both the power supply and connected hardware from potential damage. Its **active PFC (Power Factor Correction)** technology further optimizes power consumption, reducing harmonic distortion and improving overall system efficiency. The unit is built with **high-quality capacitors and MOSFETs**, ensuring long-term durability and minimal failure rates, which is essential for mission-critical applications where downtime is unacceptable. With a **1U form factor**, this power supply is compact yet robust, making it ideal for dense server racks where space is at a premium. Additionally, its **fanless or fan-assisted cooling** (depending on the model variant) ensures quiet operation while maintaining optimal thermal performance, reducing noise levels in data centers.

Designed with **enterprise-grade reliability**, the **Supermicro PWS-1K22P-1R** is built to withstand the rigors of 24/7 operation, offering a **5-year warranty** a testament to its durability and Supermicro s commitment to quality. Its **hot-swappable capability** allows for seamless maintenance without interrupting server operations, a feature that is particularly valuable in high-availability clusters. The power supply also supports **dual 12V rails**, providing balanced power distribution and preventing potential issues caused by uneven load imbalances. Whether deployed in a high-performance computing cluster, a virtualized data center, or a cloud infrastructure, this power supply delivers the **power, efficiency, and reliability** required to support next-generation workloads while minimizing operational costs and environmental impact. Supermicro s meticulous attention to detail ensures that this unit not only meets but exceeds industry standards, making it a trusted choice for IT professionals seeking a power solution that combines performance, efficiency, and longevity.

The **Supermicro PWS-1K22P-1R** is a high-end 1U server power supply designed for enterprise and mission-critical applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **High Efficiency and Energy Savings**

The 80 Platinum certification ensures the power supply operates at 90-94% efficiency under typical loads, reducing energy consumption and heat generation. This is ideal for data centers where power costs and thermal management are critical.

2. **Redundancy and Reliability**

This is a **hot-swappable, redundant power supply** (1 1 configuration), meaning it can be paired with an identical unit for full redundancy. If one fails, the system remains operational, minimizing downtime in critical environments.

3. **High Power Output and Scalability**

With a **1220W output**, it supports high-performance servers, GPUs, or multiple drives. The 1U form factor allows for dense deployments in rack-mounted systems, making it suitable for workloads requiring significant power.

4. **Enterprise-Grade Build Quality**

Supermicro is known for robust, durable components. This power supply includes features like **active PFC (Power Factor Correction)**, **low ripple and noise**, and **long-term availability of parts**, which are essential for mission-critical infrastructure.

5. **Wide Input Voltage Range**

The unit accepts **100-240V AC input**, making it versatile for global deployments without requiring voltage-specific models.

6. **Modular Design (Optional)**

While not fully modular, the design allows for easier cable management compared to traditional fixed-wire PSUs, reducing clutter in the server chassis.

7. **Compliance with Industry Standards**

It meets **CE, FCC, UL, and other safety certifications**, ensuring compatibility with strict regulatory environments.

8. **Low Noise and Thermal Performance**

The efficient cooling and design minimize operational noise, which is beneficial in shared or quiet data center environments.

9. **Long Warranty Options**

Supermicro typically offers **3-5 year warranties** (sometimes extendable), providing peace of mind for long-term deployments.

10. **Compatibility with Supermicro and Third-Party Servers**

It is designed to work seamlessly with Supermicro s server platforms and is often compatible with other high-end rack servers, though always verify compatibility with your specific chassis.

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### **Cons**

1. **High Cost**

As a premium, redundant, and high-efficiency unit, the **price is significantly higher** than standard non-redundant power supplies. For non-critical workloads, this may not be justified.

2. **Bulk and Space Constraints**

The **1U form factor** limits internal space, which can be restrictive if the server requires additional components (e.g., multiple GPUs, high-capacity drives, or cooling solutions).

3. **Redundancy Overhead**

While redundancy is beneficial, it **doubles the power consumption** when both units are active (though they typically share the load in a true redundant setup). This increases cooling and energy costs.

4. **Limited Availability of Replacements**

High-end Supermicro PSUs may not be as widely stocked as consumer-grade units, potentially leading to longer lead times for replacements.

5. **Potential for Overkill in Low-Demand Scenarios**

If the server s actual power draw is well below 1220W, the unit may operate inefficiently at lower loads, though 80 Platinum units handle partial loads reasonably well.

6. **No Fully Modular Design**

Unlike some high-end consumer PSUs, this is not fully modular, meaning some cables are permanently attached. This can complicate cable management in tight spaces.

7. **Noise at Full Load**

While generally quiet, high-power PSUs can generate more noise under full load, which may be noticeable in small or quiet data centers.

8. **Compatibility Risks with Non-Supermicro Systems**

While designed for Supermicro servers, some third-party systems may have **voltage or connector incompatibilities**, requiring verification before purchase.

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### **Conclusion**

The **Supermicro PWS-1K22P-1R** is an excellent choice for **mission-critical, high-availability, or high-performance server deployments** where redundancy, efficiency, and reliability are non-negotiable. Its strengths lie in its **enterprise-grade build, redundancy, and energy savings**, making it ideal for data centers, HPC clusters, or any environment where uptime is paramount.

However, for **budget-conscious, low-power, or non-critical workloads**, the cost and redundancy may not be justified. In such cases, a **non-redundant, high-efficiency PSU** (e.g., 80 Gold) from a reputable brand would suffice without the extra expense.

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### **Recommendation**

- **Buy this PSU if:**

- You are deploying a **critical server** (e.g., database, virtualization host, or HPC node) where downtime is unacceptable.

- Your workload requires **high power draw** (e.g., multiple GPUs, high-speed storage, or cooling-intensive components).

- You prioritize **energy efficiency and long-term cost savings** despite the higher upfront cost.

- You need **global compatibility** (100-240V input) and **enterprise support**.

- **Avoid this PSU if:**

- Your server is **non-critical** (e.g., a home lab, low-traffic web server, or testing environment).

- You are operating on a **tight budget** and can use a standard, non-redundant PSU instead.

- Your workload **rarely approaches 1220W**, making the high-end unit unnecessary.

- You prefer **fully modular designs** for easier cable management.

For most **enterprise or data center environments**, this is a **strong, well-engineered choice**. For other use cases, carefully weigh the cost against the benefits before purchasing. Always verify compatibility with your specific server chassis and components.

Details:

Supermicro PWS-1K22P-1R 1220W 1U 80 Plus Platinum Server Power Supply.

part #: pws1k22p1r price

  • $20.00

specifications serverpowe:

  • brand: Supermicro
  • mpn: Pws-1k22p-1r
  • part type: Server Supply
  • form factor: 1u
  • maximum output power: 1220 W

shipping serverpowe:

  • cost: $11.82
  • service: USPS Ground Advantage
  • carrier: USPS
  • transit: 5-12 Days
  • class: Standard
  • type: Calculated

general serverpowe:

  • condition: Used
  • Enterprise Networking, Servers > Server Components > Server Power Supplies

seller serverpowe:

  • rating: 100.0%
  • # reviews: 545
  • city: West Lafayette, Indiana

offer serverpowe:

  • started: May 30, 2026
  • best offers: True
  • quantity: 1
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock

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part type: server supply, form factor: 1u, maximum output power: 1220 w,
category: computers > enterprise networking, servers > server components > server power supplies, sku: 10042187797871871,
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  • Used. Offer #1 priced at $20.00 + $11.82 shipping estimate = $31.82* total. Supermicro 1220W 1U 80 Plus Platinum Server Power Supply.+$11.82 shipping

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