The Thermalright SG Gold 850W Non-Modular ATX 3.1+Gen5 Power Supply in black is a high-performance PSU designed to meet the demands of modern PC builds. With its 80 PLUS Gold certification, it ensures up to 90% efficiency, reducing energy consumption and heat generation. The unit operates within a wide input voltage range of 100-240Vac and includes comprehensive protection features such as Over Power Protection (OPP), Over Voltage Protection (OVP), Over Temperature Protection (OTP), Over Current Protection (OCP), Short Circuit Protection (SCP), and Under Voltage Protection (UVP). Its compact dimensions (L150 mm x W140 mm x H86 mm) make it suitable for various case sizes, and the 120mm fan ensures efficient cooling. The PSU is backed by a 5-year warranty, offering reliability and peace of mind for users.