CISCO 800-28992-01 Power Supply Catalyst 256W 3560E 3750E

( Brand: Cisco ), ( Manufacturer Part Number: 800-28992-01 ), ( Part Type: Supply ), ( Maximum Output Power: 265w ), ( Country Of Origin: Thailand ), ( Product Line: For Cisco Catlyst 3560e )

Review CISCO Power Supply Catalyst

The **Cisco 800-28992-01 256W Power Supply** is a high-performance, enterprise-grade power module meticulously engineered to deliver reliable and efficient electrical energy to Cisco Catalyst 3560-E and 3750-E series switches. Designed with Cisco s stringent quality and compatibility standards in mind, this power supply is a critical component for maintaining seamless network operations in both small to medium-sized business environments and larger enterprise deployments. Built to meet the demanding power requirements of modern networking infrastructure, it provides a consistent and stable 256-watt output, ensuring optimal performance for high-density ports, advanced features like Power over Ethernet (PoE), and robust switching capabilities. The unit features a compact yet durable design, incorporating advanced thermal management systems to dissipate heat efficiently, thereby extending the lifespan of the switch and minimizing downtime. Its modular and hot-swappable architecture allows for seamless replacement without disrupting network connectivity, a feature that is indispensable in mission-critical environments where uptime is paramount. The power supply is fully compliant with industry-leading safety and environmental standards, including UL, CSA, and CE certifications, ensuring it operates safely under a wide range of conditions. Whether deployed in a data center, office network, or remote branch location, this power supply unit exemplifies Cisco s commitment to delivering dependable, high-efficiency power solutions that enhance the overall resilience and scalability of networked systems.

### **Pros and Cons of buying a Cisco 800-0028992-01 (256W Power Supply) for Catalyst 3560E/3750E Switches**

#### **Pros**

1. **Compatibility and Reliability**

The **800-0028992-01** is an **authentic Cisco power supply** specifically designed for the **Catalyst 3560E and 3750E series switches**. Unlike third-party or generic power supplies, it is engineered to meet Cisco s strict power and cooling requirements, reducing the risk of compatibility issues, overheating, or premature failure.

2. **Higher Power Output (256W)**

The **256W model** provides **more power capacity** than the standard **150W or 250W** supplies that may come pre-installed in some models. This is beneficial if:

- The switch is running **additional modules** (e.g., SFP transceivers, PoE ports).

- The environment has **higher ambient temperatures**, requiring more cooling.

- Future upgrades (e.g., adding more ports or PoE devices) are planned.

3. **Reduced Risk of Power-Related Failures**

- **Voltage spikes/drops** that could damage internal components.

- **Overheating**, which can lead to **fan failures or switch shutdowns**.

- **PoE instability**, which is critical for VoIP phones, wireless access points, and IP cameras.

4. **Warranty and Support Coverage**

Since this is an **original Cisco part**, it comes with **Cisco s warranty and technical support**, ensuring that if it fails, Cisco s service channels can assist in replacement or troubleshooting.

5. **Better Thermal Management**

The **256W supply** is optimized for **efficient heat dissipation**, which helps maintain **stable switch performance** in **data centers or high-density deployments**.

6. **Future-Proofing for PoE and High-Density Deployments**

If the switch is being used in an environment with **heavy PoE usage** (e.g., 802.3af/at devices), a **higher-wattage supply** ensures that the switch can handle the load without **power brownouts or shutdowns**.

---

#### **Cons**

1. **Higher Cost Compared to Third-Party Options**

The **800-0028992-01** is **more expensive** than **generic or aftermarket power supplies** (e.g., from brands like **Tripp Lite, APC, or generic Cisco-compatible units**). For budget-conscious buyers, this may be a **significant drawback**.

2. **Potential Overkill for Low-PoE/Non-PoE Deployments**

If the switch is **not heavily loaded** (e.g., minimal PoE devices, few SFP modules), the **256W supply may be unnecessary**, leading to **wasted power and slightly higher operational costs**.

3. **Limited Availability and Lead Times**

Cisco **discontinued some older models**, and **authentic power supplies may not always be in stock**. This could result in **longer delivery times** compared to third-party alternatives.

4. **Physical Space Considerations**

The **256W supply is slightly larger** than standard **150W/250W units**, which may require **adjustments in rack mounting** if space is constrained.

5. **No Significant Performance Gain for Basic Use Cases**

Unless the switch is **under heavy load**, the **extra 6W (compared to a 250W supply)** may not provide **noticeable improvements** in performance or reliability.

---

### **Conclusion**

The **Cisco 800-0028992-01 (256W power supply)** is a **reliable, high-quality choice** for **Catalyst 3560E/3750E switches**, especially in environments with:

- **High PoE loads** (VoIP, wireless APs, IP cameras).

- **Future expansion plans** (additional ports, modules).

- **Strict reliability requirements** (data centers, mission-critical networks).

However, if the switch is **lightly loaded** or in a **cost-sensitive deployment**, a **third-party Cisco-compatible supply** (from a reputable brand like **Tripp Lite or APC**) may offer a **better cost-to-performance ratio** without sacrificing reliability.

---

### **Recommendation**

- The switch is **running PoE devices** or has **high power demands**.

- **Reliability and warranty support** are critical.

- Future **upgrades** (more ports, higher PoE loads) are expected.

- The switch is **not heavily loaded** (e.g., minimal PoE, few SFP modules).

- **Budget is a constraint**, and a **reputable Cisco-compatible supply** (e.g., **Tripp Lite 800W, APC 250W**) is available.

- **Stock availability** is an issue, and third-party options have **shorter lead times**.

For **most enterprise deployments**, the **800-0028992-01 is the safest choice** due to its **proven compatibility and reliability**. However, **budget-conscious admins** should carefully assess their power needs before committing to the higher cost.

Details:

Cisco 800-28992-01 256W POWER SUPPLY for Catalyst 3560E 375, Brand: Cisco, Delta Electronics, Part Number's: 800 28992-01, C3K-PWR-265WAC V01, model Number: DPSN-265BB A, INPUT: 100-240V, OUTPUT: 265W MAX, For or 3750E, Shipping: Standard Ground, Warranty: 30 Day, 3750E.

part #: 8002899201 prices

• $30.00-$300.99

specifications serverpowe:

• brand: Cisco
• mpn: 800-28992-01
• part type: Supply
• maximum output power: 265w
• country of origin: Thailand
• product line: For Cisco Catlyst 3560e

offer serverpowe:

• started: March 23, 2026
• quantity: 2
• sold: 0
• options: Ship-to-home
• availability: In Stock

payments serverpowe:

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

seller serverpowe:

• rating: 100.0%
• # reviews: 3614
• city: Fort Lauderdale, Florida

general serverpowe:

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

returns serverpowe:

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

shipping serverpowe:

• type: Calculated
• transit: 4-11 Days
• class: Standard
• service: USPS Ground Advantage
• cost: $22.45
• carrier: USPS

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