USYSTEMS QW0-4860NAH14-C2ZC5-21TLHNA Rear Door Heat Lh Exchanger CL20 48U 600W C14

( Brand: Usystems ), ( Manufacturer Part Number: QW0-4860NAH14-C2ZC5-21TLHNA ), ( Part Type: Heat Door ), ( Color: White )

Review USYSTEMS Lot Of Active Rear Door Heat Exchanger 48u C14 Lh White

The **USystems QW0-4860NAH14-C2ZC5-21TLHNA CL20 Rear Door Heat Exchanger (48U, 600W, C14, LH)** is a high-performance, precision-engineered cooling solution designed specifically for demanding data center and server rack environments. Part of USystems advanced line of liquid-cooled components, this rear-door heat exchanger is engineered to maximize thermal efficiency while maintaining compact form factor and seamless integration into standard 48U rack configurations. Built with a robust **C14 connector interface**, it ensures reliable power delivery with minimal voltage drop, making it ideal for high-wattage applications where consistent cooling performance is critical. The **600W thermal capacity** allows it to handle substantial heat loads, effectively dissipating excess heat from densely populated server racks, ensuring optimal operating temperatures for sensitive electronics. Its **left-hand (LH) orientation** ensures compatibility with standard rack layouts, reducing installation complexity and improving space utilization in data centers. Constructed from high-grade materials, including durable aluminum and corrosion-resistant coatings, this heat exchanger is built to withstand the rigors of continuous operation in high-availability environments. The **CL20 designation** indicates its compatibility with USystems liquid cooling infrastructure, enabling seamless integration with chilled water or other liquid cooling systems for enhanced thermal management. Whether deployed in enterprise-grade server rooms, hyperscale data centers, or high-performance computing clusters, this rear-door heat exchanger delivers reliable, scalable cooling helping maintain operational efficiency, extend equipment lifespan, and reduce energy consumption in mission-critical IT infrastructure.

### **Pros and Cons of buying a USystems QW0-4860NAH14-C2ZC5-21TLHNA (CL20 Rear Door Heat Exchanger, 48U, 600W, C14, LH)**

1. **Compatibility with CL20 Series Racks** This heat exchanger is specifically designed for the CL20 series of USystems racks, ensuring a proper fit and optimal airflow integration.

2. **High Power Output (600W)** The 600W capacity provides sufficient cooling for most standard server or IT equipment loads in a 48U rack, reducing the need for additional cooling solutions.

3. **Rear Door Mounting** Mounting on the rear door allows for better airflow management, preventing hot air recirculation within the rack.

4. **Standardized Design** The C14 power connector is widely used in data center and server cooling systems, making it easy to integrate with existing infrastructure.

5. **Left-Hand (LH) Orientation** Ensures proper alignment with racks that require left-side cooling, avoiding installation issues.

6. **Reliable Brand (USystems)** USystems is a reputable manufacturer in server rack cooling solutions, offering durable and well-tested products.

7. **Easy Installation** Designed for straightforward mounting, reducing downtime during installation.

8. **Energy Efficiency** Modern heat exchangers like this one are typically more energy-efficient than older cooling methods, lowering operational costs.

1. **Limited to CL20 Series** If you have a different rack model (e.g., older or newer USystems models), this may not be compatible without modifications.

2. **Fixed Power Output** At 600W, it may not be sufficient for high-density workloads or racks with multiple high-power devices (e.g., GPUs, high-end servers).

3. **Dependence on Power Supply** Requires a stable power source with a C14 connector; if your setup lacks this, additional adapters or wiring may be needed.

4. **Potential Airflow Restrictions** If installed improperly, it could disrupt rack airflow, leading to inefficient cooling.

5. **Cost Relative to Alternatives** While not excessively expensive, it may be pricier than basic passive cooling solutions (e.g., vented doors) if your cooling needs are minimal.

6. **Maintenance Requirements** Like any cooling unit, it may require periodic cleaning (e.g., dust removal from fans or coils) to maintain efficiency.

7. **Noise Considerations** Active cooling units can generate fan noise, which may be an issue in quiet environments.

---

### **Conclusion**

The **USystems QW0-4860NAH14-C2ZC5-21TLHNA rear door heat exchanger** is a solid choice for users with **CL20 racks** requiring **moderate cooling (up to 600W)**. It offers **reliable performance, easy installation, and proper airflow management**, making it ideal for standard server environments. However, it is **not suitable for high-density setups** or non-CL20 racks without adjustments.

If your rack s cooling demands exceed 600W or if you need a more flexible solution, you may need to consider **higher-capacity models, redundant cooling, or alternative cooling methods**. Additionally, ensure your power infrastructure supports the C14 connector to avoid compatibility issues.

---

### **Recommendation**

- You have a **CL20 rack** and need **active cooling for standard server loads ( 600W)**.

- You prioritize **rear-door airflow optimization** to prevent hot air recirculation.

- You want a **reliable, branded solution** with straightforward installation.

- Your rack is **not CL20-compatible** (check model numbers).

- Your cooling needs **exceed 600W** (consider a higher-wattage model or redundant cooling).

- You lack a **C14 power source** (may require additional wiring).

- Your environment is **extremely noise-sensitive** (active cooling fans can be loud).

- For **lower cooling demands**, a **passive vented door** may suffice.

- For **high-density racks**, explore **USystems higher-wattage models (e.g., 1000W )** or **liquid cooling solutions**.

- If **power connector compatibility is an issue**, verify with USystems for adapter options.

Details:

Listing is for 3 coolers. They are new in the crate still. Please see the picture of data tag for details. Those are the best pictures I can get with way they a packed in crate.

part #: qw0-4860nah14-c2zc5-21tlhna price

• $19000.00

specifications indheatexchanger:

• brand: Usystems
• mpn: Qw0-4860nah14-c2zc5-21tlhna
• part type: Heat Door
• color: White

returns indheatexchanger:

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

offer indheatexchanger:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: February 26, 2026
• quantity: 1

seller indheatexchanger:

• # reviews: 3035
• rating: 99.9%
• city: Seminole, Alabama

payments indheatexchanger:

• cash
• wallet: Paypal
• credit card: Diners-club
• wire transfer
• other

general indheatexchanger:

• condition: New
• HVAC Refrigeration > HVAC Refrigeration Components > Heat Exchangers

shipping indheatexchanger:

• type: Fixed
• cost: $500.00
• class: Freight
• service: Flat Rate Freight