Power supply unit Lian Li RB0650B.B 650 W ATX 24-pin, 80 PLUS Bronze, 135 mm fan, black

The Lian Li RB0650B.B is a 650 W ATX power supply in classic black designed for everyday and mid-range desktop systems. It delivers up to 85% efficiency with 80 PLUS Bronze certification and integrates a 135 mm temperature-controlled fan. The compact 150 mm depth allows compatibility with a wide range of ATX cases, while native ATX 3.1 support and a robust single +12V rail provide stable power for current components and future upgrades.

Advantages

The RB0650B.B combines compact dimensions and smart cable routing to support tidy, space-efficient builds. Built-in Velcro straps and a dedicated routing channel simplify cable management and improve airflow. Compliance with ATX 3.1 and a native 12V-2×6 connector enhance compatibility with next‑gen GPUs. High-quality 105°C capacitors, DC-to-DC architecture and six protection mechanisms ensure stable, reliable operation under load, while the larger 135 mm HYB fan provides effective cooling at lower noise levels.

Suitable for

• Everyday desktop PCs and office workstations
• Mid-range gaming systems and GPU-upgradable builds
• Compact ATX cases and space-conscious or minimalist builds

Key specifications

• Total power: 650 W
• Efficiency: up to 85% (80 PLUS Bronze)
• Form factor depth: 150 mm (compact ATX size)
• Cooling: 135 mm temperature-controlled HYB fan (0–1600 RPM)
• Rail design: single +12V high-amperage rail with DC-to-DC topology
• Operating temperature: up to 40°C
• Protection features: OVP, UVP, OCP, OPP, OTP, SCP
• Input voltage: 100–240 V, 50/60 Hz
• Motherboard connector: 24-pin ATX
• Color: Black

How to use

Install the PSU into a compatible ATX case with 150 mm depth clearance, secure it with the standard mounting screws and connect the 24-pin motherboard cable and CPU 4+4 pin power cable to their respective connectors. Use the modular peripheral and SATA cables only as needed and route them through the built-in grooved channel, securing excess cable length with the integrated Velcro straps to maintain airflow and a tidy interior. Ensure input voltage matches local mains (100–240 V) before powering on the system.

Recommendations

For best results, use the RB0650B.B in systems where moderate power headroom is sufficient. Keep bulky GPU cables organized via the three-sided routing and use the modular peripheral cables only when required to minimize clutter and improve case airflow.