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Be Quiet! Straight Power E9 580W Power Supply Review

The E9 580W follows a traditional Be Quiet! design, which is both attractive and immediately recognisable.

Taking centerstage is a 135mm SilentWings fan. This is a fluid bearing fan to offer a high life rating of 300,000 hours. The fan blade surface is flow optimised to give higher CFM at lower speeds while keeping noise to a minimum. The fan grille design and mounted are also carefully designed to lower noise emissions.

The power supply is fully vented to for maximum airflow. There is a power connector and power button at the side.

The sides of the chassis are subtlety engraved with the name of the company.

The modular cabling management system is clearly labelled and colour coded to aid with the system build phase.

Be Quiet! Straight Power E9 580W Power Supply
DC Output
+12V2 +12V3 +12V4
Max Output
18A 20A 20A
Total Power 140W 564W (47A) 6W 15W

The supply can deliver a total of 47A from the +12V output. Be quiet! claim that all models in this range can deliver 95% of total available power to the 12V rails.

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