SYNOLOGY 500W-RP Set Redundant Power Psu Dual Supply Cage 846504009176

( Brand: Synology ), ( Manufacturer Part Number: 500W-RP ), ( Part Type: Supply ), ( Maximum Output Power: 500 W ), ( UPC: 846504009176 )

Review SYNOLOGY Set Redundant Power 500 Watt Psu Dual Supply Cage

The **Synology 500W-RP Redundant Power Supply (PSU) Dual-Cage Set** is a robust, enterprise-grade power solution meticulously engineered to deliver uninterrupted performance, reliability, and scalability for Synology NAS systems, particularly the DS1821 and DS2421 models. Designed with redundancy at its core, this dual-PSU configuration ensures continuous operation even in the event of a single power failure, safeguarding critical data and minimizing downtime for businesses, home offices, or mission-critical storage environments. Each 500-watt power supply unit is built with high-efficiency components, including a **PFC (Power Factor Correction) circuit** that optimizes energy consumption while reducing electrical noise, making it both eco-friendly and cost-effective to operate. The **dual-cage design** allows for easy installation and maintenance, with secure mounting slots that prevent accidental dislodging, while the **hot-swappable architecture** enables seamless replacement of a faulty PSU without disrupting system functionality a critical feature for 24/7 operations.

Under the hood, the Synology 500W-RP PSUs incorporate **active PFC technology**, which not only enhances power factor correction but also extends the lifespan of the unit by reducing thermal stress. The robust **fanless or low-noise fan operation** (depending on the model variant) ensures quiet operation while maintaining optimal cooling, even under heavy workloads, making it ideal for server rooms or quiet office environments. Built with **high-quality capacitors and MOSFETs**, these power supplies are engineered to withstand prolonged use, delivering consistent voltage regulation and protecting sensitive NAS components from voltage spikes or surges a common threat in unstable electrical grids. The **redundant design** also enhances system stability by distributing the load evenly between the two PSUs, preventing any single point of failure that could otherwise lead to data corruption or hardware damage.

For administrators and IT professionals, the Synology 500W-RP PSU set offers peace of mind through its **failover capability**, where the system automatically switches to the backup unit in milliseconds if the primary PSU encounters an issue. This seamless redundancy ensures that NAS operations remain uninterrupted, whether handling large-scale file transfers, continuous backups, or high-performance applications like virtualization or media streaming. The **compact yet durable build quality** aligns with Synology s reputation for reliability, with reinforced connectors and a sturdy casing that resists physical stress, ensuring longevity even in demanding environments. Whether deployed in a small business setting, a home lab, or a data center, this power solution is a strategic investment for those who demand **uncompromising uptime, energy efficiency, and future-proof scalability** in their storage infrastructure.

**Pros and Cons of buying a Synology 500 (500W-RP) with Redundant Power Supply (Dual PSU Cage)**

### **Pros**

1. **Redundant Power Supply (RPS) Support**

The Synology 500 supports a dual PSU cage, allowing you to install two redundant power supplies. This ensures continuous operation even if one PSU fails, reducing downtime and improving reliability critical for business or mission-critical storage.

2. **High Performance and Scalability**

The 500 is designed for high-performance NAS use, supporting up to 12 drives (with the correct expansion units) and offering fast data transfer speeds via USB 3.2 Gen 2 and 10GbE connectivity. It is ideal for users needing large storage capacity and fast access.

3. **Enterprise-Grade Reliability**

Synology NAS units are known for their stability, regular firmware updates, and robust hardware design. The 500 includes features like hardware RAID, disk health monitoring, and automatic failover, making it suitable for professional environments.

4. **Flexible Storage Expansion**

The unit supports various drive types, including HDDs, SSDs, and NVMe drives, allowing users to optimize performance and capacity based on their needs. It also integrates seamlessly with Synology s ecosystem of expansion units and external drives.

5. **Redundant Power Supply Cage**

The dual PSU cage itself is a significant upgrade for users who prioritize uptime. While the base model comes with a single PSU, adding a second one (or using the cage with two identical PSUs) ensures power redundancy, which is especially valuable in environments where power outages or PSU failures could cause data loss.

6. **Synology s Ecosystem and Software**

The Synology DiskStation Manager (DSM) offers a user-friendly interface with advanced features like Hyper Backup, Snapshot Replication, and virtualization support. This makes managing the NAS straightforward while providing powerful tools for backup, file sharing, and even running lightweight servers.

7. **Future-Proofing**

The 500 supports the latest Synology packages and updates, ensuring compatibility with new features and security patches. Its robust hardware also means it can handle future storage demands for several years.

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### **Cons**

1. **High Initial Cost**

The Synology 500 is a premium NAS unit, and adding a redundant power supply cage (or purchasing two PSUs) significantly increases the upfront cost. This may be prohibitive for small businesses or home users with limited budgets.

2. **Complexity for Non-Technical Users**

While DSM is user-friendly, configuring RAID arrays, setting up redundant power supplies, and managing advanced features requires some technical knowledge. Users unfamiliar with NAS setups may find the initial configuration challenging.

3. **Power Consumption and Heat**

A high-performance NAS like the 500 consumes more power than a standard home NAS, especially when running multiple drives or features like virtualization. This can lead to higher electricity costs and may require additional cooling or ventilation in the storage environment.

4. **Dependence on Synology s Support**

Synology s ecosystem is closed, meaning users are reliant on Synology for hardware and software support. If Synology discontinues support for the 500 in the future, users may face compatibility issues or lack of updates.

5. **Physical Space and Cable Management**

The 500 is a larger unit, requiring adequate space for installation. Managing cables, drives, and PSUs can become cluttered, especially when expanding storage or adding peripherals. Proper cable organization is essential to maintain airflow and prevent overheating.

6. **Potential for Overkill**

For users with modest storage needs or those who do not require high availability, the 500 and redundant PSU setup may be overkill. A simpler NAS unit with a single PSU could suffice for home use or small-scale applications.

7. **Limited Portability**

Due to its size and power requirements, the 500 is not easily portable. Users who need to move the NAS frequently may find it cumbersome compared to smaller, more compact units.

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### **Conclusion**

The Synology 500 with a redundant power supply cage is an excellent choice for users who prioritize reliability, performance, and scalability in a NAS setup. It is particularly well-suited for businesses, home labs, or power users who require continuous operation, high storage capacity, and advanced features. The redundant power supply ensures minimal downtime, making it ideal for environments where data availability is critical.

However, the high cost, technical complexity, and power consumption may not justify the investment for users with simpler needs. If budget or requirements are limited, a smaller Synology unit or a non-redundant setup might be more appropriate.

### **Recommendation**

- You need a high-performance NAS for business, media storage, or virtualization.

- Uptime is critical, and you cannot afford downtime due to power or PSU failures.

- You plan to expand storage significantly in the future and want a scalable solution.

- You are comfortable with the technical setup and maintenance of a high-end NAS.

- You have a limited budget and can opt for a smaller, non-redundant NAS.

- Your storage needs are modest, and you do not require advanced features.

- You prioritize portability or simplicity over performance and redundancy.

For most users who require a reliable, high-performance NAS with redundancy, the Synology 500 is a strong recommendation. Pair it with a second PSU to maximize uptime and ensure peace of mind.

Details:

Pulled from a working rs3617xs, low usage, see below for full server compatibility list.

part #: 500w prices

• $89.99-$999.00

specifications serverpowe:

• brand: Synology
• mpn: 500w-rp
• part type: Supply
• maximum output power: 500 W
• upc: 846504009176

offer serverpowe:

• options: Ship-to-home
• best offers: True
• sold: 0
• availability: In Stock
• started: March 28, 2026
• quantity: 1

returns serverpowe:

• policy: No Returns

shipping serverpowe:

• cost: $0.00
• class: Economy
• carrier: FedEx
• service: FedEx Ground Economy
• type: Fixed
• transit: 5-11 Days

general serverpowe:

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

seller serverpowe:

• rating: 100.0%
• # reviews: 341
• city: New York, New York

payments serverpowe:

• other
• credit card: Mastercard
• wallet: Apple-pay

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