be quiet! Straight Power E9 450W

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Excl. VAT: £54.80 Incl. VAT: £65.76


Who are CBC Computers?

Established in 1986, offering ICT services to both the public and private sector...


2011 marked CBC Computer's 25th anniversary. Since its inception in 1986, CBC Computer Systems Ltd has grown steadily and enhanced its business through inspired innovations and technology solutions.

Based in Sheffield City Centre, CBC Computer Systems Ltd employs 25 staff, with an annual turnover of more than £10 million. We work closely with local and national government organisations, aswell as Schools, Colleges and Universities throughout the UK.


So in 2013, we celebrate CBC Computer's legacy with a nod to our past and a look ahead to exciting new things to come.

be quiet! Straight Power E9 450W

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Product Details

- Virtually silent operation achieved through a broad array of meticulous optimizations, including use of custom-designed 135mm SilentWings® Fan.
- SilentWings fan features airflow-optimized fan blade, fluid dynamic bearing with copper core and high quality IC motor controller.
- 450 Watts of continuous power provide strong power reserves for those times your PC really needs it all.
- 80PLUS Gold certification and up to 92.9% power conversion efficiency let you do more work with the same power and reduce your power bills.
- Multi-GPU ready so you can build a system with more powerful graphics capability.
- German product conception, design and quality control.

Additional Information

EAN 4260052182277
Nominal power450W
Peak power500W
AC input voltage100 - 240V
AC input frequency50 - 60 Hz
Input current6 - 3A
Power factor0.99
Power Factor Correction (PFC) typeActive
DC output voltage+12V1, +12V2, +12V3, +3.3V, +5V, +5Vsb, -12V
Combined power (+3.3V)120W
Combined power (+12V)432W
Combined power (+5V)120W
Max output current (+3.3V)24A
Max output current (+12V)36A
Max output current (+12V1)18A
Max output current (+12V2)18A
Max output current (+12V3)18A
Max output current (+5V)17A
Max output current (-12V)0.3A
Max output current (+5Vsb)3A
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time19 ms
Fan diameter13.5 cm
Number of fans1
Fan speed830 RPM
Cooling typeActive
Ports & interfaces
Motherboard power connector20+4 pin ATX
Number of SATA power connectors7
Peripheral (Molex) power connectors (4-pin)4
PCI Express power connectors (6+2 pin)2
CPU P4 connector (4-pin)1
CPU power connector (4+4 pin)Yes
Floppy drive power connector1
Cabling typeFixed
Noise level (quiet mode, 50%)13.7 dB
Noise level (silent mode, <30%)13.7 dB
Noise level (full-load mode, 100%)18 dB
Form factorATX
ATX version2.31
Noise level18 dB
Mean time between failures (MTBF)300000h
Bearing technologyFDB
Colour of productBlack
Operational conditions
Operating temperature (T-T)0 - 40 °C
Weight & dimensions
Width15 cm
Depth16 cm
Height8.6 cm
Weight2.31 kg
80 PLUS certification80 PLUS Gold
Energy Star certifiedYes
CertificationCE, CB, T
Manufacturer be quiet!
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