Seasonic CORE BC-850 ATX 3.1 850W 80 Plus Bronze Power Supply

Reliable 850W Power for Gaming, Productivity and Modern PC Builds

The Seasonic CORE BC-850 ATX 3.1 is a dependable high-capacity power supply designed to provide stable performance for gaming systems, workstation PCs and productivity-focused desktop builds. Built around Seasonic's trusted engineering expertise, this 850W PSU offers strong power delivery, modern hardware compatibility and reliable long-term operation.

Supporting the latest ATX 3.1 and PCIe 5.1 standards, the CORE BC-850 is ready for today's powerful CPUs and GPUs while maintaining compatibility with existing hardware. Combined with intelligent cooling, comprehensive protection circuitry and premium braided cabling, it delivers excellent value for users seeking reliable high-wattage performance.

Key Features & Benefits

Powerful 850W Continuous Output

With 850W of continuous power, the CORE BC-850 is designed for demanding systems requiring stable and reliable power delivery.

Ideal for:

• Gaming PCs
• Streaming Systems
• Content Creation Workstations
• High-Performance AMD Ryzen Builds
• Intel Core i7 & i9 Systems
• Multi-Drive Configurations
• Productivity Workstations

Its robust +12V rail delivers up to 840W, providing consistent power to modern processors and graphics cards.

ATX 3.1 Compatible

The CORE BC-850 complies with the latest ATX 3.1 specification, ensuring compatibility with current and future PC hardware.

Benefits include:

• Improved transient power handling
• Better system stability
• Support for modern components
• Future-ready upgrade potential

PCIe 5.1 Ready

Designed to meet modern graphics card power requirements, the CORE BC-850 supports current and future GPU technologies.

Features:

• PCIe 5.1-ready platform
• Modern GPU power support
• Legacy GPU compatibility
• Flexible upgrade paths

An excellent choice for users planning future graphics card upgrades.

80 Plus Bronze Efficiency

The CORE BC-850 delivers efficient power conversion to help reduce wasted energy and excess heat.

Advantages include:

• Lower electricity usage
• Reduced PSU temperatures
• Improved operational efficiency
• Dependable day-to-day performance

Providing a strong balance between performance and affordability.

Smart & Silent Fan Control (S²FC)

Seasonic's intelligent Smart & Silent Fan Control technology automatically adjusts cooling performance according to internal temperatures.

Benefits include:

• Quiet operation during low loads
• Efficient cooling under stress
• Improved temperature management
• Reduced overall system noise

120mm Hydro Dynamic Bearing Fan

The high-quality 120mm Hydro Dynamic Bearing (HDB) fan provides long-lasting cooling performance with low noise output.

Features include:

• Stable airflow
• Reduced vibration
• Smooth operation
• Enhanced durability
• Long service life

Rated for approximately 40,000 hours of operation under specified conditions.

Premium Braided Black Cables

The individually styled braided black cables improve both the appearance and airflow of your system.

Advantages include:

• Professional aesthetics
• Easier cable management
• Improved chassis airflow
• Cleaner system builds

Ideal for gaming PCs and professional desktop systems.

Trusted Seasonic Quality

Built on decades of PSU design and manufacturing experience, the CORE BC-850 delivers dependable long-term reliability.

Highlights include:

• High-quality internal components
• Stable voltage regulation
• Proven platform reliability
• Long operational lifespan

Comprehensive Protection Features

Advanced protection technologies help safeguard your PSU and connected hardware.

Protection Includes:

• OCP (Over Current Protection)
• OPP (Over Power Protection)
• OTP (Over Temperature Protection)
• OVP (Over Voltage Protection)
• UVP (Under Voltage Protection)
• SCP (Short Circuit Protection)

Providing confidence and protection for valuable system components.

Ideal For

✅ Gaming PCs
✅ Streaming Systems
✅ AMD Ryzen Builds
✅ Intel Core Systems
✅ Workstations
✅ Content Creation PCs
✅ Multi-Drive Storage Systems
✅ Future ATX 3.1 Upgrades

Technical Specifications

General

• Brand: Seasonic
• Model: CORE BC-850 ATX 3.1
• Part Number: SRP-CBC851-A5A51JF
• Colour: Black
• Form Factor: ATX / EPS

Power

• Total Continuous Power: 850W
• 80 Plus Bronze Certified

Electrical Specifications

• Input Voltage: 100V - 240V
• Input Current: 11A - 5.5A
• Frequency Range: 50Hz - 60Hz
• Full Range AC Input

Cooling

• 120mm Fan
• Hydro Dynamic Bearing (HDB)
• Smart & Silent Fan Control (S²FC)
• Fan Life Expectancy: 40,000 Hours

Reliability

• MTBF: 100,000 Hours

Cable Design

• Individual Black Cables with Braided Pattern

Protection Features

• OCP
• OPP
• OTP
• OVP
• UVP
• SCP

Power Distribution

Total Continuous Power: 850W

Operating Temperature

• 0°C to 40°C

Certifications

• CE
• CB
• CCC
• cTUVus
• TUV
• BSMI
• EAC
• UKCA

Environmental Compliance

• Energy Star
• RoHS
• REACH
• WEEE
• ErP Lot 6

Warranty

• 5-Year Manufacturer Warranty

What's in the Box?

• Seasonic CORE BC-850 Power Supply
• Power Cables
• Mounting Hardware
• User Documentation

Why Choose the Seasonic CORE BC-850?

The Seasonic CORE BC-850 ATX 3.1 is an excellent choice for users seeking reliable high-capacity power at an affordable price. Delivering 850W of continuous power, ATX 3.1 compatibility, PCIe 5.1 readiness, intelligent S²FC cooling, a durable 120mm HDB fan, and Seasonic's renowned engineering quality, it provides dependable performance for gaming, workstation and productivity systems. Backed by a 5-year manufacturer warranty, the CORE BC-850 offers the stability, efficiency and reliability required for demanding modern PC builds.