Gigabyte GP-UD850GM

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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