be quiet! SFX-L Power 600W Modular Power Supply - 80 PLUS Gold

be quiet! SFX L Power 600W Modular Power Supply

be quiet! SFX L Power 600W delivers compact, quiet power for mini‑ITX and small‑form‑factor gaming systems where space, efficiency and silence matter.

This fully modular SFX‑L unit combines an 80 PLUS Gold efficiency rating (up to 92%) with a temperature‑controlled 120 mm fan, advanced LLC + SR + DC‑to‑DC topology and high‑quality Japanese capacitors to provide stable 12 V output for demanding CPUs and GPUs. Flat modular cables and an included SFX‑to‑ATX adapter bracket simplify installation across SFX and larger ATX cases while keeping cable management neat.

Designed for compact builds, it supports powerful GPUs with four PCIe 6+2 connectors and includes comprehensive protection features and a 3‑year manufacturer’s warranty.

Features and Benefits

• 600 W continuous / 650 W peak power in SFX‑L (130 × 125 × 64 mm) compact form factor.
• 80 PLUS Gold certification — up to 92% efficiency reduces waste heat and operating costs.
• Four PCIe 6+2‑pin connectors to power modern, high‑performance GPUs.
• Stable 12 V single‑rail design with LLC, Synchronous Rectifier (SR) and DC‑to‑DC conversion for reliable voltage delivery.
• Fully modular flat cables for tidy builds and maximum routing flexibility.
• Temperature‑controlled 120 mm high‑quality fan for quiet operation in compact systems.
• Includes SFX‑to‑ATX adapter bracket for installation in larger ATX cases.
• Multiple protection circuits: OTP, OCP, OPP, SCP, OVP, UVP, SIP.
• Warranty: 3 Year Return To Base Warranty

Sizing Information

Dimensions (without cables): 130 × 125 × 64 mm (L × W × H)

Weight: 2.1 kg

What's in the box

• be quiet! SFX L Power 600W power supply
• SFX‑to‑ATX adapter bracket
• Screws
• Cable ties
• User manual (DE, EN, ES, FR, PL, RU)

Product Q&A

• Q: Is this PSU suitable for mini‑ITX gaming builds?
  A: Yes — the SFX‑L form factor (130 × 125 × 64 mm) is intended for mini‑ITX and other compact systems while delivering 600 W continuous power suitable for gaming CPUs and GPUs.
• Q: Can I install this in a standard ATX case?
  A: Yes — an SFX‑to‑ATX adapter bracket is included to mount the unit in larger ATX cases.
• Q: Does it support modern GPUs that require multiple power connectors?
  A: Yes — the unit provides four PCIe 6+2‑pin connectors to support powerful GPUs and multi‑GPU configurations that fall within its power envelope.
• Q: How quiet is the SFX L Power 600W?
• A: The PSU uses a temperature‑controlled 120 mm high‑quality fan and was engineered for low noise; published noise figures on the product page show low dB(A) values at typical loads (e.g., 9–15 dB(A) at low to mid loads, higher at full load).
• Q: What protections and warranty are included?
  A: The PSU features OTP, OCP, OPP, SCP, OVP, UVP and SIP protections and comes with a 3‑year manufacturer’s warranty.

Specification

• Model: SFX L Power 600W (Article number BN639)
• Continuous power: 600 W
• Peak power: 650 W
• Form factor: SFX‑L (PSU DG 1.31 / SFX12V Version 3.3)
• Input voltage: 100–240 Vac, 50–60 Hz
• Efficiency: 80 PLUS Gold (up to 92% at 50% load, 92.2% at 50% load @230 V)
• Cooling: 120 mm temperature‑controlled fan (sleeve bearing, max ~1450 rpm)
• Rails: 12 V single‑rail operation; Max combined 12 V power: 600 W
• Connectors: 1 × ATX 20+4 pin; 1 × P4+4 (CPU); 4 × PCIe 6+2 pin; 6 × SATA; 3 × PATA
• Modular cables: Yes; flat cables; cable length to motherboard 30 cm; maximum cable length 80 cm
• Protections: OTP, OCP, OPP, SCP, OVP, UVP, SIP
• Dimensions (L × W × H): 130 × 125 × 64 mm
• Weight: 1.16 kg
• Warranty: 3 years
• Safety / Certifications: CB, CE, cTUVus, FCC, TÜV and others as listed by vendor

Compatibility

Device Compatibility:

• Motherboards: Compatible with motherboards that use a standard ATX 20+4 pin main power connector and a P4+4 CPU connector (commonly used on modern Intel/AMD motherboards).
• Cases: Fits SFX and SFX‑L cases natively; can be installed in most ATX cases using the included SFX‑to‑ATX adapter bracket.
• GPUs: Compatible with GPUs that require up to four PCIe 6+2 power connectors, provided total system power draw remains within the unit's 600 W continuous rating.
• Peripherals: Provides SATA and PATA connectors for drives and accessories as specified.

Interface Requirements: Hardware compatibility requires a case and motherboard with support for SFX‑L or ATX mounting using the included adapter; standard ATX 20+4 main power and P4+4 CPU connectors and PCIe 6+2 connectors for GPUs. There are no digital interface or OS driver requirements. Not compatible with: Laptops, devices with proprietary external power bricks, or systems that do not provide the required physical connectors (ATX 20+4 / P4+4 / PCIe power pins).