be quiet! System Power 9 | 400W CM

SKU
BN300
£53.95
In stock
400 W, ATX 2.51, 200-240 VAC, 6 A, 120mm fan
  • Rock-solid stability with two strong 12V-rails
  • Equipped with DC-to-DC technology for tight voltage regulation
  • Two PCIe connectors for multi-GPU system configurations
  • Temperature-controlled 120mm fan reduces system noise
  • Low stand-by drain of less than 0.15 watts
  • 80 PLUS® Bronze efficiency of 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
  • Supports latest Intel® and AMD™ processors
  • Product conception, design and quality control in Germany
More Information
Purpose PC
Total power 400 W
Power supply unit (PSU) form factor ATX
SKU BN300
EAN 4260052187210
Manufacturer be quiet!
Availability In Stock
PDF URLs View PDF
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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 PLUS 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.

COMPREHENSIVE PROTECTION

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.

Proven Reliability and Good Efficiency

Specially designed by be quiet! with the price-conscious PC builder in mind: System Power 9 400W CM offers renowned be quiet! performance and quietness and makes it possible to build cost-effective and reliable systems.
Cooling
Fan diameter12 cm
Number of fans1 fan(s)
Cooling typeActive
Design
80 PLUS certification80 PLUS Bronze
CertificationCE, CB, TÜV, RCM, CU
Product colourBlack
Fan diameter12 cm
Number of fans1 fan(s)
Cooling typeActive
Power
Total power400 W
AC input voltage200 - 240 V
AC input frequency50 Hz
Input current4 A
Power factor0.95
Power Factor Correction (PFC) typeActive
Combined power (+3.3V)103 W
Combined power (+12V)384 W
Combined power (+5V)103 W
Combined power (-12V)3.6 W
Combined power (+5Vsb)15 W
Max output current (+3.3V)24 A
Max output current (+12V1)22 A
Max output current (+12V2)18 A
Max output current (+5V)15 A
Max output current (-12V)0.3 A
Max output current (+5Vsb)3 A
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time17 ms
Efficiency89%
Ports & interfaces
Motherboard power cable length45 cm
SATA power cable length550,670 mm
PCI Express power cable length50 cm
CPU power cable length60 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors5
Number of PATA power connectors2
PCI Express power connectors (6+2 pin)2
CPU power connector (4+4 pin)Yes
Floppy drive power connector1
Cabling typeSemi-Modular
Performance
Power supply unit (PSU) form factorATX
Noise level (quiet mode, 50%)9.7 dB
Noise level (silent mode, <30%)9.3 dB
Noise level (full-load mode, 100%)15 dB
80 PLUS certification80 PLUS Bronze
PurposePC
ATX version2.51
CertificationCE, CB, TÜV, RCM, CU
Bearing technologySleeve
Compatible productsIntel C6/C7
Harmonized System (HS) code84733020
Packaging content
Cables includedPCIe, SATA
Screws includedYes
ManualYes
Weight & dimensions
Width150 mm
Depth140 mm
Height86 mm
Weight1.49 kg
Packaging data
Cables includedPCIe, SATA
Screws includedYes
Package depth268 mm
Package width97 mm
Package height195 mm
Package typeBox
Package weight2.11 kg
ManualYes
Technical details
Sustainability certificatesENERGY STAR
Compliance certificatesRoHS
Certificates
80 PLUS certification80 PLUS Bronze
CertificationCE, CB, TÜV, RCM, CU
Logistics data
Master (outer) case width311 mm
Master (outer) case length215 mm
Master (outer) case height556 mm
Products per master (outer) case6 pc(s)
Master (outer) case gross weight13.4 kg
Harmonized System (HS) code84733020
Other features
Screws includedYes
Noise level (quiet mode, 50%)9.7 dB
Noise level (silent mode, <30%)9.3 dB
Noise level (full-load mode, 100%)15 dB
ManualYes
Harmonized System (HS) code84733020

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Description
Proven Reliability and Good Efficiency

Specially designed by be quiet! with the price-conscious PC builder in mind: System Power 9 400W CM offers renowned be quiet! performance and quietness and makes it possible to build cost-effective and reliable systems.
How do you improve data center power efficiency without impacting IT performance? HPE Flexible Slot Power Supplies provide up to 96% power efficiency with 80PLUS Titanium-certified power supplies that lower server power requirements and reduce power waste in your data center.1 It's form factor is 25% smaller than previous generation power supplies, providing more space to add additional server options and improve the performance of your servers. These power supplies provide fast, tool-less hot plug access to server power supplies for greater serviceability and are supported across the entire HPE ProLiant Gen10 and HPE ProLiant 300 Gen9 Server series families, simplifying your spares strategy and further reducing data center costs.

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- 800W universal Flex Slot power supply enables both 277V AC and 380V DC input options.

Features
Improve Data Center Efficiency Without Impacting IT Performance

HPE Flexible Slot Power Supplies provide up to 96% power efficiency with 80PLUS Platinum-certified power supplies that lower server power requirements and reduce power waste in your data center.1

The power supply form factor is 25% smaller than previous generation HPE Common Slot Power Supplies, providing more space to add additional server options and improve IT performance.

Provides fast, tool-less hot plug access to server power supplies for greater serviceability.

Supported across all HPE ProLiant Gen10 Server series and HPE ProLiant 300 Gen9 Server series, simplifying your spares strategy and reducing data center costs.

Efficiency ratings based on testing performed by Ecova per the requirements of the 80PLUS program. For more information, please visit: www.80plus.com
Exceptionally Quiet, Superior Reliability, Great Value

Pure Power 11 400W offers peerless dependability and best-in-class features. Whether you’re assembling a very quiet system, building a multi-GPU gaming system, or upgrading an existing PC, your build will benefit from this PSU that simply has the best combination of features at a very popular price.

80 PLUS® GOLD CERTIFICATION
Very high operating efficiency
Pure Power 11 400W is certified 80 PLUS Gold with an efficiency rating of up to 92% – a truly outstanding level for this class of PSU. The most compelling benefit: lower power consumption and consequently lower costs, and cooler, quieter operation.

POWER AND COMPATIBILITY FOR YOUR SYSTEM
The best combination of features and performance at a very popular price
Pure Power 11 offers 400W of continuous power with 2 independent 12V rails for signal stability and 2 PCI express connectors for multi-GPU systems. It is suited to very quiet systems, for upgrading or building multimedia or multi-GPU gaming systems.

INNOVATIVE TECHNOLOGIES
DC-to-DC, Active Clamp and Synchronous Rectifier
The use of Active Clamp and Synchronous Rectifier technologies provides very stable operation. The PSU is equipped with DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions. This ensures secure operation for next generation processors and graphics cards.

EXCEPTIONALLY SILENT OPERATION
Achieved by a silence-optimized 120mm be quiet! fan
The silence-optimized 120mm be quiet! fan is thermally governed to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality and the almost inaudible operation that be quiet! is famous for.

HIGH-QUALITY SLEEVED CABLES
Keeping your system tidy and good-looking
Pure Power 400W is equipped with high-quality sleeved cables that simplify component installation, increase airflow and improve cooling. The All-in-one cable has a convenient easy-plug HDD connector.
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Features

Improve Data Center Efficiency Without Impacting IT Performance
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- The power supply form factor is 25% smaller than previous generation HPE Common Slot Power Supplies, leaving more space to add server options improving the performance of your servers.
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The FX Pro series is the latest PSU series launched by Cronus. The FX Pro range are a non-modular power supplies that we offer in three power configurations, 500W, 600W and 700W, all 80 Plus Bronze certified. Not only is this power supply impressive in performance but the components used in this power supply are components normally used by top tier brands. This Power supply is perfect for enthusiastic gamers who are pursuing the ultimate gaming experience. Realise a more powerful performance.

80 Plus Bronze Certification
The FX Pro range are 80 Plus Bronze certified achieving an efficiency of up to 88% at a load of 50%.

Japanese TK Main Capacitor
With a Japanese TK main capacitor included the FX Pro Range delivers a reliable life expectancy and quality assurance.

Power
The FX Pro range offers some real power, the 12V output can be rated over 90% of the total level, ensuring a smooth operation. The 80 Plus 230V EU Bronze efficiency enables your high end components to work to their full potential.

Structure
The structure of a power supply decides the main performance such as the efficiency and temperature but with a double forward and active PFC, the FX Pro range ensures a supreme performance.

Full Range Voltage Power Off Protection
With a full range voltage and SCP function, if the power is cut off you don't need to worry, the FX Pro will activate the power off protection function to protect your PSU and motherboard effectively.

Professional Looking
Black is the colour, with the all black finish and the flat black cables give your gaming PC a clean look. The flat black cables enable builders to easily manage and save space creating a great looking PC.

Warranty
The FX Pro range comes with 2 years warranty.

Model
FX PRO 700W

Wattage
700W

Input Voltage
200-240 VAC

Input Current
6A

Input Frequency Range
47-63Hz

PFC
Active PFC

Power Good Signal
Approx 300ms

Hold Up Time
10ms

Efficiency
85%

MTBF
30,000 Hours

Protection
OVP / UVP / OLP / OPP / SCP

Operation Temperature
0-40°C

Safety
CE / CCC

Cooling
140mm Silent Cooling Fan

Noise
40dBA

80 PLUS Certified
Bronze

Colour
Black

Connections
1 x 20+4 Pin Main
2 x 4+4 Pin 12V
6 x SATA
2 x 4-Pin Molex
4 x 6+2 Pin PCI-e

What's In The Box
PSU
Cable Ties
Screws

Product Dimensions ( W x H x D )
150mm x 85mm x 160mm

Packaging Dimensions ( W x H x D )
280mm x 190mm x 121mm

Weight
Net: 1.76 KGs
Gross: 1.99 KGs

Master Carton Quantity
6

Mains Plug Included
No - Please see CLTAR-RB-250
Power Up

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80 Plus Bronze Certified

It's important to understand what efficiency is and what the ratings actually mean. The efficiency rating indicates how much power is retained and/or lost when transferring it from the wall to your components. It does not indicate the overall quality of the PSU. A PSU doesn't need an 80 PLUS Gold rating to be safe and reliable. And a PSU with an 80 PLUS Gold rating isn't necessarily either of those things. The MWE Bronze V2 guarantees a typical efficiency of 85% while being both safe and reliable.

120mm HDB Fan

The constant struggle between cooling and noise is as old as the consumer PC industry itself. Keeping your components cool without having to hear about it while you work is still one of the greatest challenges for all fan based cooling technologies. The MWE Bronze's solution to this problem is a thermally sensitive 120mm HDB fan. It spins based on the system's temperature, constantly adjusting to keep your PSU running smoothly and safely with the minimum amount of noise required.

Single +12V Rail

Getting power from the wall to the PSU and then to your components is a tricky situation. The power comes in one voltage level, but your components need a different one. That power has to first be transferred to/through a converter in order to make it safe for your parts to use without overloading.

The lines/rails used to initially move power from the wall to the converter need to be reliable and consistent to ensure your system's overall performance. That's why the MWE Bronze only uses one +12V rail for this process. This way all the components in your system are constantly fed the same power from the same source in order to guarantee consistency between all connections.

DC-TO-DC Circuit Design

Power comes in multiple voltage levels. The wall delivers power in one voltage level but your components each need a specific voltage to operate properly. The process of converting raw power from the wall to the multiple voltage levels your components need requires special components to complete this process quickly, efficiently, and safely. The MWE White's DC-to-DC + LLC technology was painstakingly crafted to accomplish this goal. The Dual Forward circuit layout has been designed to convert 12V power to 3V and 5V levels with minimal ripple noise, 80 PLUS Bronze efficiency, and reduced risk to your connected components.

Flat Black Cables

For many PC Builders with aesthetics in mind, cabling can be one of the most troublesome parts of assembling a PC. Cables can be confusing, too short or too long, and they almost never look good. The MWE Bronze - V2 uses flat and flexible black cables to help deal with these problems. These cables are more discrete and flexible, making them easier to implement into your system while taking up less space. This is especially useful for smaller cases and preserving airflow.
Short Description
400 W, ATX 2.51, 200-240 VAC, 6 A, 120mm fan
800W Flex Slot Platinum Hot Plug Low Halogen Power Supply Kit
400 W, ATX 2.4, 1x ATX 20+4-pin, 5x SATA, 2x PATA, FDD, 2x PCI-E 6+2-pin, 1x P4+4, 120mm fan, 14.9dB max.
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CRONUS 700ATV FX PRO 700W PSU 140mm Silent Cooling Fan 80 PLUS Bronze Non Modular Flat Black Cables Supreme Performance PSU
550 W, ATX 12V V2.52, APFC, ATX 24 Pin / EPS 4+4 Pin / SATA / Peripheral 4 Pin / PCI-e 6+2 Pin, 200-240 V, 5 A, 50/60Hz, 120 mm, HDB, 140 x 150 x 86 mm, 1.272 kg
Manufacturer
be quiet!
HPE
be quiet!
HPE
CRONUS
Cooler Master
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