be quiet! SFX L Power 600W 80 PLUS Gold Fully Modular SFX-L Power Supply (BN679)

Compact 600W Power for a Carefully Planned Small-Form-Factor Build

The be quiet! SFX L Power 600W is a fully modular SFX-L power supply for compact desktops whose total power demand and connections fit this exact unit. Its black 130 × 125 × 64 mm housing and included SFX-to-ATX adapter offer installation flexibility, provided the case supports the body dimensions and cable clearance.

A temperature-controlled 120 mm fan cools the unit, while 80 PLUS Gold certification, active PFC and LLC/DC-to-DC conversion define the power platform. The supplied connections include a 20+4-pin motherboard connector, one 4+4-pin CPU connector and four 6+2-pin PCIe connectors. SFX-L is not the same depth as every SFX unit: check case compatibility, cable reach and the graphics card’s power requirements before ordering.

Best For: Compact desktops, SFX-L-compatible cases, Mini-ITX builds, Modular cable routing, Matched 600W systems, SFX-to-ATX installations

DETAIL SPECIFICATION

TECHNICAL FEATURES

Compact does not mean clearance-free

Measure the 130 mm-long SFX-L body, modular plugs and cable bends against the actual enclosure. The supplied adapter can support installation in a compatible ATX mounting position.

Use only the required matching cables

Fully modular flat cables help organise a small case. Use the exact supplied cable set rather than mixing cables from another PSU, even if the plugs appear similar.

Match both wattage and connectors

The +12 V rail is rated at 600 W within the unit’s 600 W continuous output. Four 6+2-pin PCIe connectors do not mean unlimited GPU power or a dedicated 16-pin lead.

Temperature-controlled airflow

A 120 mm fan responds to operating conditions. Keep the PSU intake and exhaust clear; do not assume a fanless or zero-noise operating mode.

🔎 Technical Conclusion

Output / Platform:
600 W continuous power in an SFX-L housing with LLC/DC-to-DC conversion.

Efficiency:
80 PLUS Gold certification.

Cabling / GPU Connection:
Fully modular; one 4+4-pin CPU and four 6+2-pin PCIe connectors.

Cooling / Protection:
Temperature-controlled 120 mm fan and listed electrical/thermal protections.

Physical / Installation:
130 × 125 × 64 mm; SFX-to-ATX adapter included. Check cable reach and case clearance.

Overall Positioning:
A compact modular choice for a system deliberately matched to a 600 W power budget.

✅ Suitable For

• Mini-ITX builders
  Choose it where the case explicitly supports SFX-L depth and the complete system fits the rated output.
• Users organising a compact chassis
  Flat modular leads allow you to route only the supplied cables needed by your configuration.
• Owners using an ATX mounting position
  The included adapter supports compatible mounting; confirm cable lengths reach every connection.
• Upgraders replacing an older PSU
  Check CPU, GPU and drive connectors individually, and remove the old PSU’s modular cables.

🛡️ Buy With Confidence — Ralik Aftersales Support

• Compatibility Guidance
  Contact Ralik with your case, CPU and graphics card models for installation guidance.
• Aftersales Assistance
  Contact Ralik for product-related aftersales assistance.