Gigabyte UD850GM 850W 80 PLUS Gold Modular ATX Power Supply

Overview

The Gigabyte GP-UD850GM is a high-performance ATX power supply unit designed to deliver 850 watts of stable power with 80 Plus Gold efficiency. It is built to support gaming rigs and demanding computing setups by providing reliable and efficient power delivery. The fully modular design allows users to connect only the cables they need, which helps maintain a clean build and improves airflow inside the PC case.

Equipped with high-quality Japanese capacitors, this PSU achieves up to 90% efficiency under typical loads, ensuring long-lasting reliability and consistent performance. Its 120mm hydraulic bearing fan, combined with an enlarged heatsink, manages heat effectively while operating quietly during low to moderate system loads. The single +12V rail design offers stable power output, and multiple built-in protections safeguard your components from electrical damage.

Key features

• Fully modular cable system with flat cables for easier installation and improved airflow
• 80 Plus Gold certification guarantees up to 90% energy efficiency, reducing wasted power and heat
• High-quality Japanese capacitors enhance durability and stable performance over time
• 120mm hydraulic bearing fan with thermal control keeps noise levels low while effectively cooling the unit
• Single +12V rail design provides consistent and reliable power delivery to critical components
• Comprehensive protection features including overcurrent, overvoltage, and short circuit safeguards to protect your hardware
• Standard ATX form factor ensures compatibility with most PC cases for flexible system builds

Key specs

• Power output: 850 watts
• Efficiency rating: 80 Plus Gold (up to 90% efficiency)
• Fan size and type: 120mm hydraulic bearing fan with thermal control
• Capacitors: Japanese capacitors for enhanced reliability
• Power rail: Single +12V rail
• Form factor: ATX
• Protection features: Overcurrent, overvoltage, short circuit protection

Connectivity and compatibility

The modular design of the GP-UD850GM allows you to customize your cable setup, connecting only the cables necessary for your components. This flexibility supports a wide range of hardware configurations, from high-end gaming PCs to professional workstations. Its standard ATX size fits most PC cases, making it a versatile choice for various builds.

• Modular cables reduce clutter and improve airflow inside the case
• Compatible with standard ATX cases for easy installation

Performance and reliability

With its 80 Plus Gold certification and premium Japanese capacitors, this power supply maintains efficient and stable power delivery even under demanding loads. The single +12V rail design ensures that your CPU and GPU receive consistent power, which is critical for system stability during gaming or intensive tasks. The quiet fan and effective heat dissipation contribute to a cooler and more reliable system overall.

Ideal uses and environments

This power supply is well suited to users building gaming PCs or workstations that require dependable and efficient power. Its modular design and quiet operation make it a strong choice for setups where clean cable management and low noise are priorities. Whether you are upgrading your current system or assembling a new build, the GP-UD850GM offers a balance of performance, efficiency, and protection that fits a variety of computing needs.