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
- #Hide#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
Free shipping is available to all UK residents.
These orders will be sent on a Royal Mail 48 hour tracked service. If you require a more immediate delivery service, we use DHL. However, this courier service will incur an extra cost as stated at the checkout.
We also use DHL/Royal Mail for all European shipments, if you require a European delivery service please select your country at the check out for a shipping price. For international shipments outside of Europe, please contact us directly for a bespoke quote.
We understand that occasionally products may need to be returned to us, but we are here to help make the process easier.
For all returns to Blackmore IT you will need to complete a return merchandise authorisation (RMA) form in order for us to process your refund or replacement during the product's warranty period. Please print this return documentation by clicking here and ensure you include this documentation with a copy of your proof of purchase within the return.
If you need to return your purchase from us, whether you bought it online or over the phone, the product can be returned for a full refund within 21 days of delivery as long as it's still in its original, unopened anti static (a silver coloured bag or pink bubble material) packaging. Please follow the returns policy above.
We sincerely apologise if your product develops a fault within its warranty period, and if the fault occurs within 30 days of purchase (or delivery) we will always offer you an exchange or refund. However, in all cases we do reserve the right to inspect the product and verify the fault, if you would like to discuss this further please call us on 0808 196 2772, alternatively follow the returns policy above.
We want you to be absolutely satisfied with your Blackmore IT product and would recommend that, where practicable, you unpack and check it for any transit damage as soon as your product arrives. If you receive a damaged product please call us as soon as possible on 0808 196 2772 to inform us about this issue.
We will then arrange an exchange or refund as soon as possible, once the return has been processed as per the above returns policy.
Our Return to Base (RTB) warranties mean if the item doesn't work on delivery we cover all costs of getting a replacement sent out immediately. However, if the item works on delivery but within 6 months breaks then we ask you to send it back to us for repair or replacement.