be quiet! System Power 10 850W — Essential 80+ Gold Power Supply

The be quiet! System Power 10 850W is the only 80 PLUS Gold-certified model in be quiet!'s price-conscious Essential lineup, delivering an exceptional 93.4% peak efficiency rating that matches premium-tier PSUs at a mainstream price point. Engineered around advanced LLC + Synchronous Rectifier + DC-to-DC topology with dual 12V rails for rock-solid voltage stability, a silence-optimized 120mm be quiet! fan with airflow-optimized blades, and premium black flat cabling, the System Power 10 850W brings be quiet!'s legendary near-silent operation to budget-conscious builds. With a wired non-modular design that keeps cost down without sacrificing core power quality, this PSU is the smart value choice for gaming rigs, productivity workstations, and reliable everyday computing builds.

🚀 Performance Specifications

• Wattage: 850W continuous output
• Efficiency: 80 PLUS Gold certified — peak 93.4% efficiency (top of its class)
• Form Factor: ATX (160 × 150 × 86 mm)
• ATX Standard: ATX 12V Version 2.52 (Pre-ATX 3.0)
• Modularity: Wired Non-Modular (all cables permanently attached)
• Topology: LLC Resonant + Synchronous Rectifier + DC-to-DC with Active PFC
• Cooling: 120mm silence-optimized be quiet! fan with rifle bearing
• Rails: Dual 12V rail design for separate CPU and GPU power delivery

⚡ Why be quiet! System Power 10 Punches Above Its Weight

• 93.4% Peak Efficiency: Class-leading efficiency for an Essential-tier PSU — saves on electricity costs and reduces system heat output
• Legendary be quiet! Acoustics: Silence-optimized 120mm fan with airflow-optimized blade profile reduces turbulence — delivers the near-inaudible operation be quiet! is famous for
• Premium Topology in Budget Tier: LLC + Synchronous Rectifier (SR) + DC-to-DC technology typically reserved for higher-priced PSUs
• Dual 12V Rail Stability: Independent 12V rails ensure rock-solid voltage stability even with heavy concurrent CPU and GPU loads
• Black Flat Cables: Premium flat cable design despite the non-modular layout — easier cable management than traditional round cables
• Stand-By Power Under 0.15W: Industry-leading low standby power draw for energy-conscious users

🎨 Design — be quiet! Signature Aesthetic

• Color: Matte black anodized chassis with subtle be quiet! branding
• Cables: Premium black flat fixed cables — easier to route in tight cases vs. round bundled cables
• Fan Grille: Honeycomb mesh design with be quiet! signature aesthetic
• No RGB: Stealth professional appearance — perfect for clean builds and silent PCs
• Standard ATX Footprint: 160 × 150 × 86 mm — fits comfortably in nearly all modern PC cases
• Subtle Branding: Discrete be quiet! logo doesn't dominate the visual design

🛡️ Build Quality & Protection

• 120mm be quiet! Fan: Silence-optimized rifle-bearing fan with airflow-optimized blades — best-in-class quietness
• Thermal-Governed Fan Curve: Smart RPM control balances effective cooling with whisper-quiet operation under all loads
• LLC + SR + DC-to-DC Topology: Modern resonant design delivers very stable operation, enhanced voltage regulation, and tight cross-load performance
• Active PFC Design: Clean current draw from the wall with reduced harmonics
• Comprehensive Protection Suite: OCP (Over Current), OVP (Over Voltage), UVP (Under Voltage), SCP (Short Circuit), OTP (Over Temperature), OPP (Over Power)
• Dual 12V Rails: Independent rails for CPU and GPU power deliver rock-solid voltage stability even during heavy concurrent loads
• Premium Internal Components: Quality transformers, MOSFETs, and capacitors deliver consistent performance

💻 Platform Compatibility

• NVIDIA GPUs: Excellent for RTX 30 Series (RTX 3070/3080), RTX 40 Series (RTX 4060/4070/4070 Ti) via 4× PCIe 6+2-pin connectors
• AMD GPUs: Powers Radeon RX 6800 XT, RX 7800 XT, RX 7900 GRE class cards comfortably
• Intel CPUs: Compatible with all Intel platforms including high-end Z690/Z790/Z890 motherboards (single 8-pin EPS supported)
• AMD CPUs: Full compatibility with AM4 (X570/B550) and AM5 (X670/B650/X870/B850) platforms
• Storage: 6× SATA connectors support storage drives, optical drives, and SSDs
• Cases: Standard ATX form factor — fits all mid-towers, full-towers, and ATX-compatible chassis
• Note: Pre-ATX 3.0 PSU — for native 12VHPWR/PCIe 5.0 connectivity (RTX 4090/5090 class), choose an ATX 3.0 or 3.1 certified PSU

🎯 Best For

• Mid-range to high-end gaming rigs powered by NVIDIA RTX 3070/3080 or RTX 4070/4070 Ti class GPUs
• AMD Ryzen 5/7 gaming systems on AM4 or AM5 platforms
• Silent PC builders prioritizing low noise above all else — be quiet!'s acoustic legacy
• Productivity workstations and home/office PCs requiring reliable, quiet power
• Budget-conscious builders who want premium 80+ Gold efficiency without paying for modularity they don't need
• First-time PC builders looking for proven reliability from a respected silent-PC brand
• Pre-built system replacements where non-modular cabling is acceptable

📋 Key Features

• 850W ATX power supply with 80+ Gold certification — 93.4% peak efficiency
• Silence-optimized 120mm be quiet! fan with airflow-optimized blade profile
• LLC + Synchronous Rectifier + DC-to-DC conversion topology with Active PFC
• Dual 12V rail design for independent CPU and GPU power stability
• Premium black flat cables (non-modular wired design)
• 4× PCIe 6+2-pin connectors for graphics card support
• 6× SATA + 4-pin peripheral connectors for storage and accessories
• Industry-leading sub-0.15W standby power consumption
• Active PFC with comprehensive OCP/OVP/UVP/SCP/OTP/OPP protection suite
• Compact 160 × 150 × 86 mm chassis fits all standard ATX cases
• Part of be quiet!'s Essential lineup — only Gold-certified model in the series
• SKU: PSU-BEQT-SYSPWR10-OB-0136