Antec Atom B650 Non-Modular Power Supply - 650W, 80 PLUS Bronze, ATX, 120mm Fan

Delivering a robust 54A on its +12V rail, the Antec Atom B650 Non-Modular Power Supply provides 648W of stable, reliable power for your PC build. With an 80 PLUS Bronze efficiency rating, it reduces energy waste and heat, while the 120mm fan keeps things cool and quiet. This ATX unit is engineered for dependable performance in mainstream systems.

Overview

The Antec Atom B650 is a non-modular ATX power supply that offers 650W of continuous power. It features a single +12V rail design, ensuring compatibility with modern graphics cards and CPUs. Active PFC (Power Factor Correction) enhances energy efficiency and stability across a wide input voltage range of 100-240V AC. The unit includes a full set of connectors: one 20+4 pin main power, one 4+4 pin EPS for the CPU, four 6+2 pin PCI-E connectors for graphics cards, five SATA power connectors, and three Molex peripheral connectors. Comprehensive protections—OVP, UVP, SCP, OPP, OTP, and SIP—safeguard your components from electrical anomalies. With an MTBF of 100,000 hours and certifications including CE, CB, TUV, cTUVus, FCC, RCM, CCC, EAC, RoHS, and WEEE, this PSU is built for long-term reliability.

What stands out

• 80 PLUS Bronze efficiency: Reduces energy consumption and heat output, lowering your electricity bill and system temperature.
• Powerful +12V rail: 54A (648W) on a single rail ensures stable power delivery to high-performance CPUs and GPUs.
• Quiet 120mm fan: Provides efficient cooling with low noise, even under load.

Technical details

• Power Output: 650W
• Efficiency Rating: 80 PLUS Bronze
• Form Factor: ATX
• Modularity: Non-Modular
• Fan Size: 120mm
• PFC Type: Active PFC
• Input Voltage: 100-240V AC
• Input Frequency: 50-60Hz
• Main Power Connector: 1x 20+4 Pin
• CPU Power Connector: 1x 4+4 Pin EPS
• PCI-E Power Connectors: 4x 6+2 Pin
• SATA Power Connectors: 5x
• Peripheral (Molex) Power Connectors: 3x
• +12V Rail Design: Single Rail
• +12V Max Output: 54A (648W)
• Protections: OVP, UVP, SCP, OPP, OTP, SIP
• MTBF: 100,000 hours
• Operating Temperature: 0 - 40 °C
• Certifications: CE, CB, TUV, cTUVus, FCC, RCM, CCC, EAC, RoHS, WEEE

Our verdict

The Antec Atom B650 is a solid choice for builders seeking reliable, efficient power without modular complexity. Its strong +12V rail and comprehensive protections make it a dependable foundation for mainstream systems.