Bykski Durable 4x80mm 2U Server AIO Liquid CPU Cooler For AMD EPYC (Socket SP3) (LGA 4094) - Continuous Usage

This Bykski Durable 4x80mm Server AIO Liquid CPU Cooler is purpose-built for AMD EPYC platforms (Socket SP3) (LGA 4094), delivering reliable thermal performance for continuous, 24/7 operation. The compact 4x80mm radiator paired with a high-efficiency pump and sealed loop design ensures stable CPU temperatures under sustained, high-core workloads typical of server and workstation environments. Its robust construction and low-maintenance AIO architecture make it ideal for dense racks or small-form server chassis where space and airflow are constrained.

A high-flow microfin waterblock maximizes heat transfer from large EPYC IHS surfaces, while the 4x80mm radiator optimizes airflow in front-to-back server layouts. The closed-loop design ships pre-filled and pre-bled for straightforward installation and dependable operation, minimizing downtime and service intervals.

Specifications

• CPU Water block: High Purity Copper with microfin array
• Radiator: 4x80mm aluminum fin radiator (compact server fitment)
• Fans: Four 80mm PWM fans (high static pressure, optimized for dense fins)
• Pump: Integrated high-reliability pump for continuous duty
• Tubing: Sealed, low-permeation for long-term use
• Coolant: Pre-filled, non-conductive, anti-corrosion blend
• Mounting: SP3 (LGA 4094) bracket for AMD EPYC

Compatibility

ONLY Compatible with

• AMD EPYC processors on Socket SP3 (LGA 4094) with supported server/workstation motherboards that provide standard SP3 mounting

Parts Included

• Bykski 4x80mm Server AIO Liquid CPU Cooler (radiator, pump, tubing, and waterblock pre-assembled)
• Four 80mm PWM fans
• SP3 (Socket SP3/LGA 4094) mounting kit and installation hardware)
• Thermal paste

Warnings

This is a repair or replacement-only item. Returns are not accepted on compatibility issues.

The product does NOT include printed instructions. Please check the product gallery images for installation references. The manufacturer reserves the right to alter product design to improve compatibility or performance. The delivered item may not 100% match the pictured item.

Apply thermal paste only to the CPU IHS. Ensure correct bracket orientation and even mounting pressure. Do not modify tubing or attempt to open the sealed loop; doing so will void warranty and can lead to leaks or failure.

This product is designed for self-installation by qualified users. The manufacturer is not liable for any damages resulting from misuse, including, but not limited to, improper installation, operation outside specifications, or the use of incompatible hardware or environments. By using this product, you accept all related risks.

To view our comprehensive and detailed return policy, please kindly use the link provided below. This link will direct you to all the necessary information regarding our procedures, guidelines, and requirements for returns. You will find everything you need to know about the return process, including eligibility criteria, timelines, and any specific conditions that may apply. Thank you for your understanding and cooperation in this matter. We appreciate your attention to this important information.

Return/Refunds and Restock Fees

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