Gigabyte UD850GM 850 Watt 80 Plus Gold SMPS – Ultra Durable Power for High-Performance PC Builds

The Gigabyte UD850GM 850W 80 Plus Gold SMPS is engineered for builders who demand long-term stability, high efficiency, and superior component protection for modern gaming and workstation PCs. Built upon Gigabyte’s renowned Ultra Durable philosophy, this power supply combines premium materials, advanced cooling solutions, and fully modular cabling to deliver unmatched reliability and performance for high-end hardware setups.

With its compact 140 mm design, the UD850GM is compatible with a wide range of PC cases, including compact builds, while providing robust power delivery to support powerful CPUs and next-generation GPUs. Whether you're assembling a gaming rig, a rendering workstation, or an overclocked system, the UD850GM ensures clean, stable, and efficient power output.

Ultra Durable Build Quality for Long-Term Reliability

The UD850GM inherits Gigabyte’s Ultra Durable design approach, incorporating high-grade materials and engineering techniques to ensure long-lasting performance. This includes:

• High-quality Japanese capacitors for superior efficiency and durability

• Optimized internal structure for stable voltage regulation

• Robust protection circuitry for global safety compliance

This makes the UD850GM an ideal choice for users who prioritize longevity and power stability.

High-Quality Japanese Capacitors – Maximum Efficiency & Lifespan

The PSU uses premium Japanese capacitors as its main components, known for their reliability, low ESR performance, and high temperature tolerance. This significantly boosts overall efficiency, stability, and lifespan, even under continuous heavy loads.

Enhanced Thermal Solution for Better Heat Dissipation

Gigabyte has upgraded the thermal design by enlarging the heatsink by 200% or more, improving airflow and cooling efficiency. The result:

• Over 10% better heat dissipation performance

• Lower internal temperatures

• Longer lifespan for all internal components

This ensures the power supply can handle demanding workloads without thermal stress.

120mm Smart Hydraulic Bearing (HYB) Fan – Quiet & Efficient Cooling

The 120mm HYB fan intelligently adjusts its speed based on power consumption. Key advantages:

• Fan stops completely at low load (<20%) for silent operation

• Hydraulic bearing enhances longevity and reduces noise

• Smart cooling ensures stable performance under high load

This fan design helps maintain quiet operation while providing excellent cooling efficiency.

Comprehensive Protection for System Safety

To guarantee system stability under all conditions, the UD850GM includes six industrial-grade protection features, including:

• OCP – Over Current Protection

• OVP – Over Voltage Protection

• UVP – Under Voltage Protection

• OPP – Over Power Protection

• OTP – Over Temperature Protection

• SCP – Short Circuit Protection

Backed by international safety certifications, this PSU ensures your components remain safe from electrical risk.

Fully Modular Design for Cleaner Cable Management

The UD850GM features fully modular black flat cables, allowing you to:

• Install only the cables you need

• Improve airflow inside the chassis

• Reduce cable clutter

• Enhance thermal performance

This setup is ideal for clean-looking PC builds and optimized cooling systems.

80 Plus Gold Certification for High Efficiency

Certified with 80 Plus Gold, the UD850GM delivers up to 90% efficiency at 50% load, resulting in:

• Reduced power wastage

• Lower heat output

• Quieter overall operation

• Longer component lifespan

High efficiency also helps minimize electricity costs over long-term use.

Single +12V Rail for Maximum Stability & Overclocking

The robust single +12V rail ensures:

• Stable power delivery to demanding GPUs and CPUs

• Better compatibility with modern components

• Simplified cable routing and installation

• Ideal conditions for overclocking

This design improves overall system stability during intense workloads or gaming sessions.

Compact 140 mm Size – Fits Any Build with Ease

Unlike many high-wattage PSUs, the UD850GM features a compact 140 mm length, making it easy to install in:

• Mid-tower cases

• Smaller ATX chassis

• High-airflow custom builds

This design offers compatibility and convenience without sacrificing performance.