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BEQUIET BN300 400W 80+ Bronze Semi-Modular PSU

BEQUIET BN300 400W 80+ Bronze Semi-Modular PSU

by BEQUIET

£46.87

Power your system silently and reliably with the BEQUIET BN300. This 400W semi-modular power supply boasts 80+ Bronze efficiency and a durable sleeve bearing fan, perfect for budget-conscious builders seeking dependable performance. Enjoy quiet operation and consistent power delivery for your PC.

GTIN04260052187210
EAN4260052187210
MPNBN300
Prices updated 6 Apr 2026

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Product Description

BEQUIET BN300 400W Power Supply Unit The be quiet! System Power 9 400W (BN300) is a reliable and quiet power supply unit perfect for budget-conscious builders seeking dependable performance. This semi-modular PSU delivers stable power for your system components, making it ideal for entry-level gaming PCs, home workstations, or HTPCs. Benefit from efficient operation, intelligent thermal management, and the renowned be quiet! commitment to low-noise operation. Features 80 PLUS Bronze certified for up to 89% efficiency, reducing energy waste and operating costs. Temperature-controlled 120mm fan for quiet operation, even under load. Two independent 12V rails for stable power delivery to your CPU and GPU. DC-to-DC conversion for tight voltage regulation, ensuring system stability. Semi-modular design with high-quality sleeved and flat cables for improved cable management and aesthetics. Supports multi-GPU configurations with multiple PCIe connectors. Comprehensive protection features (OCP, OVP, OPP, OTP, UVP, and SCP) for secure operation. Meets the latest Intel C6/C7, ErP, and Energy Star 6.1 guidelines. 3-year manufacturer's warranty for peace of mind. Specifications Brand: be quiet! Model: BN300 Power Output: 400W Efficiency Certification: 80 PLUS Bronze Fan: 120mm temperature-controlled Form Factor: ATX Modular Design: Semi-Modular +12V Rails: Dual PCIe Connectors: Multiple (Specific number not provided) Protection Features: OCP, OVP, OPP, OTP, UVP, SCP Standby Power Consumption: Less than 0.15W Warranty: 3 years

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