The Gigabyte GP-UD850GM PG5W 850W PC power supply with fully modular cables is 80 PLUS Gold certified and ensures better energy efficiency. Lower power consumption reduces heat generation and fan noise. The power supply can achieve an efficiency of up to 90% and offers the best solution for system builds. The modular cables reduce clutter and improve air circulation in the enclosure. The single + 12V rail provides the best output power, stability and compatibility for the hardware. The quiet 120 mm fan optimises noise reduction and thermal performance. The fan speed is adjusted according to the automatic power detection. The fan offers a longer and more stable service life thanks to hydraulic bearings.