Gigabyte UD850GM PG5 (850W) 80 Plus Gold, Modular, ATX 3.0, PCIe 5.0 Ready Power Supply

The Gigabyte UD850GM PG5 is an 850W modular ATX power supply with 80+ Gold efficiency, aimed at mid-range to high-end gaming and workstation configurations. It supports ATX 3.0 and is PCIe Gen 5.0 Ready, meaning you are covered for both current and next-generation GPUs. With efficiency up to 90%, you get stable operation and less excess heat. The compact length of 140 mm facilitates installation in smaller cases without sacrificing power and connectivity.

What you get

With a real 850W and output lines of DC 3.3/5/±12 V, the power supply comfortably handles a powerful CPU plus a modern high-end GPU, even if you plan a serious upgrade in the future. Thanks to ATX 3.0 / PCIe Gen 5.0 support and the PCI-e 12+4 Pin connector, you have direct compatibility with new graphics cards without the need for adapters. The modular design allows you to connect only the necessary cables, which improves airflow and makes cable management much easier. With a total of 4 x PCI-e 6+2 Pin and 8 x SATA connectors, you can attach multiple GPUs (within the power limits), plus SSDs, HDDs, and additional peripherals without running out of ports. Active PFC ensures the power supply operates more efficiently and stably in a range of 100 - 240 VAC, which helps with fluctuations in mains voltage.

• 850W Power – sufficient for a strong gaming or creative build with a powerful CPU and high-end GPU.
• 80+ Gold certification with up to 90% efficiency – less energy loss, lower heat, and quieter operation under the same load.
• ATX 3.0 / PCIe Gen 5.0 Ready – ready for current and future graphics cards with a PCI-e 12+4 Pin connector.
• Modular design – connect only the necessary cables, which facilitates cable management and improves airflow inside the case.
• Rich connector set – 1 x 20+4 Pin ATX, 2 x CPU/EPS 4+4 Pin, 4 x PCI-e 6+2 Pin, 8 x SATA, Peripheral, and floppy cover almost any configuration.
• Compact dimensions 150 x 140 x 86 mm – convenient installation even in shorter ATX cases, without hitting the drive cage or front fans.
• Active PFC and 100 - 240 VAC input – more stable power delivery to components and better compatibility with various electrical grids.
• 5-year warranty (60 months) – long-term security for one of the most important parts in your system.

Who it is suitable for

This power supply is a good choice for a serious gaming build, streaming/content machine, or powerful work desktop where you plan or already use a more power-hungry GPU and want ATX 3.0 / PCIe 5.0 compatibility. It is also suitable if you care about a clean internal look and good airflow due to the modular cables and compact length. It is not aimed at extreme multi-GPU configurations beyond the capabilities of 850W, but for a single powerful GPU plus a lot of storage, it is more than enough.

The combination of 850W power, 80+ Gold efficiency, and PCIe Gen 5.0 readiness in a compact ATX body makes the Gigabyte UD850GM PG5 a very balanced choice for a modern and future configuration. You get a power supply that you can comfortably keep for your next major upgrade.