Gigabyte UD850GM PG5 V2 Gold 850 Watt ATX 3.1 Fully Modular Smps

The GIGABYTE UD850GM PG5 V2 is an 850-watt fully modular ATX 3.1 power supply built for demanding modern PC builds. Certified to the 80 PLUS Gold standard, it delivers up to 90% efficiency at 50% load, reducing wasted heat and keeping your system quieter. GIGABYTE also rates this unit as Cybenetics Platinum for efficiency, and its compact 140mm depth makes it compatible with space-constrained chassis that standard-length PSUs would not fit. The unit is ready for the latest generation of graphics hardware. Its native 16-pin (12V-2×6) PCIe Gen 5.1 cable can deliver up to 600 watts to a single GPU — covering cards such as the GeForce RTX 50 Series — and the ATX 3.1 spec allows it to handle up to three GPU power excursions and two system-level power excursions while maintaining 70% efficiency even at low loads. Power delivery is handled through a single +12V rail rated at 83.3A, providing clean, stable output that simplifies cabling and benefits overclocking workloads. The 3.3V and 5V rails share a combined 125W budget, with a 3A standby rail. Thermal management centres on a 120mm hydraulic bearing (HYB) fan. A smart fan mode keeps the fan completely silent when the system is idle or pulling less than 20% rated load, spinning up proportionally as demand rises. The hydraulic bearing design is chosen for longevity over sleeve bearings. All critical components use 100% Japanese capacitors, a choice that affects both ripple suppression and long-term reliability. The modular cable loom features sleek black embossed cables: connect only what your build needs, reducing cable clutter and improving airflow inside the case. A total of four PCIe 6+2-pin connectors, four SATA connectors, and four 4-pin peripheral connectors ship in the box. Protection coverage includes OVP (over-voltage), UVP (under-voltage), OCP (over-current), OPP (over-power), SCP (short-circuit), OTP (over-temperature), NLO (no-load operation), and SIP (surge and inrush protection). The unit ships with a 10-year manufacturer warranty, subject to regional terms. — Verified Specifications — Wattage: 850W | Form factor: ATX 3.1 | Efficiency: 80 PLUS Gold / Cybenetics Platinum | Modular: Fully modular | Fan: 120mm HYB | +12V rail: 83.3A (single) | +3.3V: 25A | +5V: 25A | -12V: 0.3A | +5Vsb: 3A | Combined +3.3V/+5V: 125W | PCIe Gen 5.1 16-pin cable: up to 600W | PCIe 6+2-pin connectors: 4 | SATA connectors: 4 | 4-pin peripheral: 4 | Depth: 140mm | Input voltage: 100–240V AC (China: 200–240V) | Frequency: 50–60Hz | Active PFC: Yes | Protections: OVP, UVP, OCP, OPP, SCP, OTP, NLO, SIP | Warranty: 10 years (region-dependent) | SKU: GP-UD850GM-PG5-V2