CISCO 73-4368-03-A0 Plc Modules

( Brand: Cisco ), ( Manufacturer Part Number: 73-4368-03-A0 ), ( Part Type: Module )

Review CISCO 73436803a0 Used

The **Cisco 73-4368-03-A0 (73436803A0)** is a high-performance, enterprise-grade **Cisco Catalyst 9300 Series 48-Port Gigabit Ethernet SFP Switch**, designed to deliver advanced networking capabilities for modern data centers, branch offices, and campus environments. This switch is part of Cisco s **Catalyst 9000 family**, which integrates cutting-edge **Intelligent Networking** features, including **Cisco StackWise-480**, **Cisco DNA Center compatibility**, and **AI-driven analytics** to optimize network performance, security, and operational efficiency. Built on a **highly scalable architecture**, the 73-4368-03-A0 supports **48 fixed 10/100/1000BASE-T Gigabit Ethernet ports** with **PoE (Power over Ethernet Plus) capabilities**, enabling power delivery up to **30W per port** for powering devices such as IP phones, wireless access points, and security cameras. Each port is equipped with **IEEE 802.3af/at/bt compliance**, ensuring reliable power distribution while maintaining high-speed data transmission.

At its core, this switch leverages **Cisco s Unified Access Data Plane (UADP) ASIC**, a high-performance hardware accelerator that enhances packet processing, reducing latency and improving throughput for critical applications like **VoIP, video conferencing, and cloud-based services**. The device supports **Cisco StackWise-480 technology**, allowing for **stackable configurations** with up to **9 switches** in a single stack, simplifying management, improving redundancy, and ensuring seamless failover capabilities. This stackable design also enables **hot-swappable power supplies and fans**, minimizing downtime during maintenance. Security is a priority with **Cisco TrustSec**, **MACsec encryption**, **DDoS protection**, and **Cisco DNA Assurance**, which provides real-time monitoring and threat detection to safeguard against cyber threats.

The 73-4368-03-A0 is fully **software-defined networking (SDN)-ready**, integrating seamlessly with **Cisco DNA Center**, a cloud-based platform that enables **automated provisioning, policy enforcement, and intelligent traffic management**. This switch supports **Cisco IOS XE Software**, which includes advanced features such as **Quality of Service (QoS)**, **Multicast**, **VLANs**, **Layer 3 routing (IPv4/IPv6)**, and **Advanced Security**, including **Cisco Stealthwatch**, **Secure Access Control Server (ACS)**, and **Firepower Threat Defense (FTD) integration**. The switch also accommodates **Small Form-Factor Pluggable (SFP) modules** on select ports, enabling **10G SFP uplinks** for high-bandwidth connectivity to servers, storage arrays, or other network devices, further enhancing scalability and flexibility.

Designed with **energy efficiency in mind**, the 73-4368-03-A0 incorporates **Cisco s EnergyWise technology**, allowing for dynamic power management to reduce operational costs while maintaining peak performance. The switch features **dual redundant power supplies** (with optional **Cisco Power over Ethernet (PoE ) modules**) and **hot-swappable fans**, ensuring high availability and reliability in demanding environments. Its **compact, rack-mountable form factor** (1U height) makes it ideal for space-constrained data centers and network closets, while its **fanless design option** (available in certain models) reduces operational noise and cooling requirements. The device also supports **Cisco s Sustainable and Energy-Efficient Design (SEED) principles**, contributing to a greener IT infrastructure.

For administrators, the 73-4368-03-A0 offers **intuitive management interfaces**, including **Cisco Prime Infrastructure**, **CLI (Command Line Interface)**, and **web-based GUI**, simplifying configuration, troubleshooting, and monitoring. It is also **compatible with third-party network management systems (NMS)** via **SNMP, RMON, and syslog**, ensuring interoperability with existing enterprise tools. Whether deployed in a **small branch office, a large campus network, or a high-density data center**, this switch delivers **unmatched performance, security, and scalability**, making it a cornerstone for next-generation networking infrastructures.

### **Analysis of Buying Cisco 73-4368-03-A0 (or 73436803A0) Power Supply**

The **Cisco 73-4368-03-A0** (or **73436803A0**) is a **redundant power supply module** designed for certain Cisco networking devices, such as the **Cisco Catalyst 4500E, 4500-X, or 6500 series switches**. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros of buying a Cisco 73-4368-03-A0**

1. **Compatibility and Reliability**

- This is an **authentic Cisco power supply**, meaning it is designed to work seamlessly with supported Cisco switches.

- Cisco hardware is built for **long-term reliability**, reducing the risk of compatibility issues or premature failure compared to third-party alternatives.

- The module is **redundant**, meaning it can be paired with another power supply for **fault tolerance**, ensuring continuous operation even if one fails.

2. **Performance and Efficiency**

- Cisco power supplies are optimized for **high efficiency**, reducing heat generation and power consumption.

- They support **hot-swappable** installation, allowing replacement without powering down the device.

- The module is **enterprise-grade**, meaning it can handle sustained high loads without overheating or degrading performance.

3. **Warranty and Support**

- Purchasing directly from **Cisco or an authorized reseller** often includes a **warranty** (typically 1 3 years, depending on the source).

- Cisco provides **technical support** for genuine parts, which can be useful if issues arise.

- Some resellers offer **extended warranties** or **return policies**, adding peace of mind.

4. **Future-Proofing**

- Cisco hardware is **long-lasting**, and genuine parts are less likely to fail unexpectedly compared to aftermarket alternatives.

- The module is **field-proven**, meaning it has been tested in various network environments, reducing the risk of unexpected failures.

5. **Resale Value**

- Genuine Cisco parts retain **better resale value** than third-party or refurbished units.

- If the device is ever upgraded or replaced, the original power supply may still be usable in another Cisco system.

---

### **Cons of buying a Cisco 73-4368-03-A0**

1. **High Cost**

- Authentic Cisco parts are **significantly more expensive** than third-party or refurbished alternatives.

- The price can range from **$200 $500 **, depending on availability and seller.

- For budget-conscious buyers, this may be a **major drawback**, especially if the device is no longer in active use.

2. **Limited Availability**

- Cisco has **phased out support for older models**, meaning this part may be **hard to find** from official channels.

- Some sellers may **overcharge** due to perceived scarcity, leading to higher prices.

- Buyers must **verify authenticity** to avoid counterfeit or refurbished parts that may not function correctly.

3. **Potential for Overkill**

- If the device is **not in active use** or has been **replaced by newer hardware**, the cost may not justify the purchase.

- Some users may find that **third-party or refurbished power supplies** (if compatible) offer a **cost-effective alternative**.

4. **Shipping and Handling Risks**

- Since Cisco parts are **heavy and bulky**, shipping costs can be **high**, especially for international buyers.

- There is a risk of **damage during transit**, though this is more common with third-party sellers.

- Some sellers may **delay shipping** due to inventory constraints, causing delays.

5. **Environmental and Ethical Considerations**

- Purchasing new Cisco hardware contributes to **electronic waste** if the original device is being replaced.

- Some buyers prefer **refurbished or recycled** parts to reduce environmental impact.

---

### **Conclusion**

The **Cisco 73-4368-03-A0 (73436803A0) power supply** is a **high-quality, reliable, and enterprise-grade** component that is ideal for **mission-critical networking environments** where uptime and compatibility are paramount. Its **redundancy, hot-swappable design, and long-term reliability** make it a strong choice for **active Cisco deployments**.

However, the **high cost, limited availability, and potential overkill for non-critical devices** may make it **less attractive** for budget-conscious buyers or those with older, non-active equipment. If the device is **still in use and requires genuine Cisco parts**, this is the **best option**. If the device is **obsolete or being replaced**, a **third-party or refurbished alternative** (if verified for compatibility) could be a **more economical choice**.

---

### **Recommendation**

- You are maintaining an **active Cisco network** where reliability is critical.

- You need a **genuine, redundant power supply** for fault tolerance.

- You are willing to **invest in enterprise-grade hardware** with long-term support.

- You have **verified the part s compatibility** with your specific Cisco model.

- The device is **no longer in active use** and you need a **cost-effective replacement**.

- You are open to **third-party or refurbished parts** (ensure they are **compatible and tested**).

- You can **source a used or open-market Cisco power supply** at a lower price (check for **authenticity and condition**).

- You are **replacing an older Cisco device** with newer hardware, making the power supply **less necessary**.

- **Authorized Cisco resellers** (e.g., Cisco Marketplace, authorized distributors like Ingram Micro, CDW).

- **Reputable third-party sellers** (eBay, Amazon Business, or specialized network hardware retailers) **only if the part is verified as genuine**.

- **Refurbished channels** (if the part comes with a **warranty and testing certification**).

- **Unknown or untested third-party sellers** (risk of counterfeit or damaged parts).

- **Purchasing without verifying compatibility** (some Cisco models require specific power supply variants).

- **Overpaying for "new" parts** that may actually be **refurbished or open-box** unless clearly stated.

For **active, mission-critical Cisco deployments**, the **73-4368-03-A0 is the best choice** despite the higher cost. For **non-critical or obsolete equipment**, explore **verified alternatives** to reduce expenses while maintaining reliability. Always **check compatibility** and **source from trusted sellers** to avoid issues.

Details:

Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: 73436803a0 prices

• $45.00-$280.00

specifications sensoindustria:

• brand: Cisco
• mpn: 73-4368-03-a0
• part type: Module

offer sensoindustria:

• options: Ship-to-home
• sold: 0
• started: February 12, 2026
• quantity: 1
• availability: In Stock
• best offers: True

shipping sensoindustria:

• cost: $12.90
• service: Standard
• class: Standard
• transit: 30-35 Days
• type: Fixed

returns sensoindustria:

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

payments sensoindustria:

• other
• credit card: Visa
• wallet: Google-pay

seller sensoindustria:

• rating: 99.5%
• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 189938

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

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