GIGABYTE UD850GM PG5W Fuente de alimentación - PCIe 5.0, 80 PLUS Gold, diseño totalmente modular, ventilador de 120 mm, compatible con ATX 3.0, conector EU

The GIGABYTE UD850GM PG5W 850 W is a compact ATX power supply designed for desktop PCs that require stable, efficient power delivery. It supports PCIe Gen 5.0 graphics cards via a native 16-pin (+12VHPWR) connector with a cable capable of delivering up to 450 W to the GPU, and complies with the Intel ATX 3.0 (PSDG) power supply standard for transient power excursions and timing. The unit is 80 PLUS Gold certified and integrates high-quality Japanese capacitors, an enlarged heatsink and a 120 mm smart hydraulic bearing fan to balance cooling, noise and longevity.

Advantages

The power supply offers up to 850 W total output with a +12V rail able to deliver the unit's full rated power. Its native 16-pin PCIe Gen 5.0 connector supports high-power modern graphics cards, while ATX 3.0 compliance ensures support for power excursions and required timing specifications. The 80 PLUS Gold certification provides around 90% efficiency at optimal loads, reducing wasted energy and heat. The fully modular flat-cable design reduces clutter and improves case airflow. Built with Japanese main capacitors, an enlarged heatsink and a smart 120 mm HYB fan, the UD850GM PG5W focuses on durability and stable thermal performance.

Suitable for

• Gaming and high-performance desktop builds using PCIe Gen 5.0 graphics cards
• Workstations requiring stable 850 W power delivery
• Compact or mid-tower cases where a 140 mm PSU length is preferred
• Systems where modular cabling and improved airflow are desired

Key specifications

• Total power: 850 W
• Efficiency: 80 PLUS Gold (around 90% at 50% load)
• Motherboard connector: 20+4 pin ATX
• PCIe connector: native 16-pin (+12VHPWR) cable, supports up to 450 W to GPU
• Fan: 120 mm smart hydraulic bearing (HYB)
• Form factor / length: ATX, 140 mm length
• Input voltage: 100–240 V AC, up to 12 A
• Product colour: White

How to use

Install the UD850GM PG5W into a compatible ATX case and secure it with the provided screws. Connect the 20+4 pin ATX cable to the motherboard and attach the modular cables required by your system. For modern PCIe Gen 5.0 graphics cards, use the included native 16-pin (+12VHPWR) cable and ensure the GPU accepts the connector. Verify cable routing to maintain good airflow and connect SATA, peripheral and CPU power cables as needed. After connections are confirmed, power on the system and check that voltages and fan operation are normal.

Recommendations

For reliable operation, ensure your chassis supports the 140 mm PSU length and use only the supplied +12VHPWR cable for PCIe Gen 5.0 GPUs. Allow adequate ventilation around the PSU, and keep the fan and vents free of dust to maintain cooling efficiency and extend component life.