HP P40359-001 Server Power Supply 700W HSTNS-PL46-R1 J731

( Brand: Hp ), ( Manufacturer Part Number: P40359-001 ), ( Part Type: Server Supply ), ( Maximum Output Power: 700 W )

Review HP Lot Of Server Power Supply

The **HP P40359-001 700W Server Power Supply (HSTNS-PL46-R1, J731)** is a high-performance, fully modular, and enterprise-grade power solution designed to deliver reliable, efficient, and scalable energy distribution for demanding server environments. Engineered to meet the rigorous demands of modern data centers, this power supply unit (PSU) incorporates advanced thermal management, redundant hot-swappable capabilities, and robust efficiency ratings to ensure uninterrupted operation even under peak workloads. With a **700-watt** output capacity, it provides ample power for high-end servers, workstations, and storage systems, supporting a wide range of configurations while maintaining optimal performance and energy efficiency. The unit adheres to **80 PLUS Platinum** certification, achieving up to **92% efficiency** at full load, which not only reduces operational costs but also minimizes heat generation, contributing to a cooler and more sustainable server environment.

This PSU features **fully modular cables**, allowing users to connect only the necessary power lines, simplifying cable management, improving airflow within the server chassis, and reducing the risk of overheating. The modular design also enhances flexibility, enabling easy upgrades or reconfigurations without the need for additional hardware. Built with **hot-swappable** functionality, the HP P40359-001 ensures minimal downtime during maintenance or replacements, as technicians can replace a faulty unit without shutting down the entire system. The power supply is equipped with **redundant protection mechanisms**, including over-voltage, over-current, and short-circuit safeguards, which help prevent damage to sensitive server components and extend the lifespan of the equipment.

From a durability standpoint, this PSU is constructed with high-quality materials and components, including **active PFC (Power Factor Correction)** technology, which optimizes power consumption and reduces harmonic distortions, aligning with energy efficiency standards. The unit also supports **dual-voltage operation**, accommodating both **110V and 230V** power inputs, making it versatile for deployment in global data centers without requiring additional adapters. Additionally, the **J731** model is designed to comply with strict industry standards, including **CE, FCC, and UL certifications**, ensuring reliability, safety, and compatibility with a broad spectrum of server platforms. Whether deployed in a high-density rack environment or a traditional server room, the HP P40359-001 delivers a balance of power, efficiency, and resilience, making it an ideal choice for mission-critical applications where uptime and performance are paramount.

### **Pros and Cons of the HP P40359-001 (700W Server Power Supply HSTNS-PL46-R1, J731)**

1. **High Reliability and Redundancy Support** This is a **hot-plug, redundant-capable** power supply, meaning it can be used in server configurations where failover is critical. If one PSU fails, the system can continue operating with the remaining unit, reducing downtime.

2. **High Efficiency (80 Gold Certified)** The unit meets **80 PLUS Gold** efficiency standards, meaning it operates at **87-90% efficiency** under typical loads. This reduces energy waste and lowers operational costs over time.

3. **Modular or Non-Modular Options Available** While the **P40359-001** itself is a **non-modular** PSU, HP offers modular variants (e.g., **P40360-001**) that allow for easier cable management in dense server environments. Modular PSUs can be beneficial in racks with limited airflow.

4. **Enterprise-Grade Build Quality** Designed for **servers and data center use**, this PSU is built to handle **continuous operation** with minimal heat generation, making it suitable for high-availability environments.

5. **Wide Input Voltage Range (100-240V AC)** Supports **global power standards**, reducing the need for additional voltage converters in different regions.

6. **Long Lifespan and Durability** HP s server-grade components are designed for **extended operational life**, often exceeding **5-7 years** with proper maintenance.

7. **Compatibility with HP Servers** Specifically engineered to work seamlessly with **HP ProLiant, BladeSystem, and Synergy** servers, ensuring proper power delivery and system stability.

8. **Low Noise Operation** Compared to some consumer-grade PSUs, this unit operates **quietly**, which is beneficial in data centers where noise reduction is important.

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1. **Non-Modular Design (Standard Version)** The **P40359-001** is **non-modular**, meaning all cables are permanently attached. This can lead to **cable clutter** in tight server racks, potentially affecting airflow and cooling. If cable management is a concern, a **modular variant (P40360-001)** may be preferable.

2. **Higher Upfront Cost** Compared to **consumer-grade or basic server PSUs**, this is a **premium unit**, making it more expensive. For non-critical applications, a lower-cost alternative may suffice.

3. **Limited Availability of Replacements** Since this is an **HP proprietary part**, finding replacements (especially in the secondary market) can be **difficult** compared to universal server PSUs.

4. **Overkill for Low-End Servers** If the server in question is **not mission-critical** (e.g., a basic workstation or low-power server), a **cheaper, non-redundant PSU** would be sufficient.

5. **Potential for Overkill in Small Deployments** For **single-server setups** where redundancy isn t necessary, a **single 700W PSU** may be more power than needed, leading to **inefficient energy use**.

6. **No Fanless Option** Unlike some ultra-low-noise PSUs, this unit **requires a fan** for cooling, which may generate some noise in quiet environments.

7. **Compatibility Issues with Non-HP Systems** While it works with HP servers, **third-party servers or non-HP systems** may not recognize it properly, requiring manual configuration.

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### **Conclusion**

The **HP P40359-001 (700W, HSTNS-PL46-R1, J731)** is an **excellent choice** for **enterprise, mission-critical, or redundant server setups** where reliability, efficiency, and long-term performance are priorities. Its **80 PLUS Gold certification, hot-plug capability, and enterprise-grade build** make it ideal for **data centers, high-availability clusters, and HP ProLiant environments**.

However, if you are running a **non-critical server, a single non-redundant system, or a space-constrained rack**, the **higher cost and non-modular design** may not be justified. In such cases, a **cheaper, modular, or universal server PSU** could be a better fit.

For **HP ProLiant servers in redundant configurations**, this is a **strong recommendation**. For **budget-conscious or non-HP setups**, alternatives should be considered.

- You need **redundancy** (for failover in critical systems).

- You are using **HP ProLiant, BladeSystem, or Synergy servers**.

- You prioritize **efficiency, reliability, and long-term performance**.

- You can justify the **premium cost** for enterprise-grade components.

- You are running a **single non-critical server** where redundancy is unnecessary.

- You need **modular cables** for better cable management.

- You are on a **tight budget** and can find a **compatible, lower-cost alternative**.

- You are using **non-HP hardware** and may face compatibility issues.

For most **HP server environments requiring redundancy**, this is a **solid, high-quality choice**. For other use cases, evaluate whether the **benefits outweigh the cost**.

Details:

R2A SB L4 J731. This is completely out of our hands. Item is offered with a 30-day money back guarantee. Lot of 2 HP P40359-001 700W Server Power Supply HSTNS-PL46-R1 J731 Pulled From A Working Machine, Fair, Cosmetic Condition, You are buying for a Lot This item was pulled from working machine and is guaranteed.

Toggle navigation Menu. May have stickers and tape residue. No manuals, cords, cables, batteries, battery charger, external power supply, software, or instructions are included in this offering unless specifically listed above the. No accessories included unless stated.

The item exteriors may have minor scratches, scuffs, dents, cracks, nicks, etc. Has clearly been used. Could have marker writing on unit.

part #: p40359001 prices

• $37.15-$153.00

specifications serverpowe:

• brand: Hp
• mpn: P40359-001
• part type: Server Supply
• maximum output power: 700 W

payments serverpowe:

• cash
• wallet: Paypal
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• credit card: Diners-club

offer serverpowe:

• availability: In Stock
• options: Ship-to-home
• quantity: 3
• started: March 16, 2026
• sold: 0

shipping serverpowe:

• service: Standard
• class: Standard
• transit: 3-7 Days
• cost: $0.00
• type: Fixed

returns serverpowe:

• policy: Returns Accepted
• time: 30 Days
• method: Money back
• paid by: Seller

seller serverpowe:

• # reviews: 107183
• city: Houston, Texas
• rating: 99.6%

general serverpowe:

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

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