Be Quiet! 400W System Power 9 CM PSU, Semi-Modular, Sleeve Bearing, 80 Bronze, Dual 12V, Cont. Power
be quiet! System Power 9 400W CM offers renowned be quiet! reliability and quietness for cost-effective and reliable systems.
Rock-solid stability with two strong 12V-rails
DC-to-DC technology for tight voltage regulation
Multi-GPU support with two PCIe connectors
Temperature-controlled 120mm fan reduces system noise
Stand-by drain of less than 0.15 watts
80 PLUS® Bronze efficiency (up to 89%)
Semi-modular, high-quality sleeved and flat cables
All-in-one cable with S-ATA, HDD and FDD connectors
Complete suite of top safety features
Meets latest Intel® C6/C7, ErP and Energy Star 6.1 guidelines
3-year manufacturer’s warranty
Very Quiet Operation
System Power 9 400W CM is equipped with a temperature-controlled 120mm fan. It provides you with the low noise operation that be quiet! is famous for, built into an entry-level system.
80 Bronze Certification
The 80 PLUS Bronze certification is convincing evidence of this PSU’s efficient and power saving operation. It is a remarkable achievement for this class of PSU, realizing an efficiency rating of up to 89%.
High Performance for Your System
System Power 9 400W CM provides stable and dependable power for CPU and GPU. It is equipped with two independent 12V-rails and supports several graphics cards with two PCI express connectors for multi-GPU systems.
Innovative DC-to-DC Conversion
The PSU is equipped with DC-to-DC conversion for tight voltage regulation, even under heavy cross-loading conditions. This ensures reliable operation and makes it ready for the next generation of processors and graphics cards.
Semi-Modular Cable Management
System Power 9 400W CM comes with full high-quality black sleeved cables that add a touch of class to any PC system. Thanks to the semi-modular cable management, cables that serve no purpose in the system are left out.
Top component protection with a full suite of safety functions, including OCP, OVP, OPP, OTP UVP and SCP, which provide the ultimate in secure operation.
Form Factor: ATX
Modular: Semi Modular
Series: Be Quiet! System Power 9
Compatability: ATX 12V v2.51
Wattage: 400 W
Connectors: “1 x ATX-Motherboard (20 4-pin)
1 x P4 4 (CPU)
2 x PCI-E 6 2-pin (GPU)
2 x PATA 4-pin
5 x SATA 15-pin (HDD, Drives)
1 x FDD (Floppy) “
Rail Design: Dual 12V
AC Input: AC200-240 V
PFC: Active PFC
Fan Type: High-quality 120mm fan
Fan Bearing: Sleeve Bearing
Noise: dB(A) at 20% load: 9.3
dB(A) at 50% load: 9.7
dB(A) at 100% load: 15
80 Certification: 80 Bronze
Efficiency: Up to 89%
MTBF: “100,000 hours”
Protection: Over current
Features: See Overview
Weight/Dimensions: 1.49 kg
140 x 150 x 86 mm
Package Weight: 2.3000 kg
Warranty: 3 Years