EVGA 850 B5 850W Fully Modular Power Supply

Overview

The EVGA 220-B5-0850-V1 is an 850-watt fully modular power supply designed to deliver stable and efficient power to gaming PCs, creative workstations, and high-performance desktops. With an 80 PLUS Bronze certification, it achieves up to 89 percent efficiency at typical loads, reducing wasted energy and heat generation. Its compact 150 mm depth allows it to fit comfortably in mid-tower and compact ATX cases, making it a versatile choice for various builds.

Key features

• Fully modular cabling system that simplifies cable management and improves airflow inside the case
• ECO Mode technology that keeps fan noise low by allowing the fan to idle during light to medium workloads
• High-quality Japanese capacitors that ensure long-term voltage stability and reliable performance under temperature fluctuations
• Comprehensive protection circuits including over-voltage, under-voltage, over-current, over-power, short-circuit, and over-temperature safeguards to protect your components
• Compact design with a 150 mm depth that fits well in standard mid-tower and smaller ATX cases
• Five-year limited warranty supported by EVGA’s customer service for added confidence and support

Key specs

• Power output: 850 watts
• Efficiency rating: 80 PLUS Bronze, up to 89% efficiency at typical loads
• Form factor: ATX power supply
• Depth: 150 mm
• Cabling: Fully modular
• Capacitors: Japanese brand for voltage stability
• Protection features: OVP (over-voltage protection), UVP (under-voltage protection), OCP (over-current protection), OPP (over-power protection), SCP (short-circuit protection), OTP (over-temperature protection)

Performance and reliability

This power supply is engineered to maintain consistent voltage delivery even during demanding tasks like gaming marathons or intensive rendering sessions. The use of Japanese capacitors enhances durability and helps the unit withstand temperature changes without compromising performance. The ECO Mode reduces fan noise when the system is under light load, creating a quieter environment without sacrificing cooling when the workload increases.

Compatibility and installation

The EVGA 850 B5’s compact size and fully modular cables make it easy to install in a wide range of cases, including those with limited space behind the motherboard tray. Its modular design also allows users to connect only the cables they need, reducing clutter and improving airflow, which is crucial for maintaining optimal system temperatures. This power supply supports standard ATX mounting and is compatible with most modern desktop components.

Who this power supply is for

This model is a strong choice for PC builders who want a balance of efficiency, quiet operation, and flexible installation options. It suits gamers, content creators, and professionals who run power-hungry hardware but also value a clean and manageable build. The combination of solid protections and a five-year warranty makes it a dependable option for users who push their systems hard and want peace of mind over the long term.