Based on this product's specifications, here are some alternatives and similar models
Power Supply Unit FSP VITA GM 850W
Summary description:
The FSP VITA GM 850W power supply unit is designed for PC use, featuring a total power output of 850W. It supports an AC input voltage range of 100-240V and operates at a frequency of 50/60 Hz. The 20+4 pin ATX motherboard power connector ensures compatibility with most motherboards, while the 60 cm motherboard power cable and 500 mm SATA power cable provide ample length for installation. With an 80 PLUS Gold certification, this PSU guarantees high efficiency and reliability. The active cooling system with a 12 cm fan ensures optimal temperature management, making it a solid choice for any PC build.