
Be Quiet! · Electronics
be quiet! SYSTEM POWER 11 550W 80+ Bronze
€65.00
In stock
Prices last checked 2 Nov 2026, 12:53 UTC. Delivery and checkout conditions apply.
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Klikk Computer Store
In stock · Checked 2 Nov 2026, 12:53 UTC
About this product
Reliable Power For A Modern PC The be quiet! System Power 11 550W is an ATX 3.1 power supply designed for dependable everyday system builds. It provides 550 W of continuous output and supports current PCIe graphics cards through a native 12V-2x6 connector and two PCIe 6+2-pin connectors. Stable Output For CPU And Graphics A strong single 12 V rail and DC-to-DC conversion help deliver stable power across changing system loads. The 12V-2x6 connector supports up to 300 W, while the power supply is designed to handle short power excursions up to twice its rated output. Quiet, Temperature-Controlled Cooling A temperature-controlled 120 mm fan adjusts cooling to system demand, helping keep noise low during typical use. The fan uses a rifle bearing and four-pole motor, with a noise-optimised design for quieter operation. Efficient Operation And Protection 80 PLUS Bronze certification supports efficient operation, with a listed peak efficiency of 89.7% at 230 V and 50% load. Built-in protections help guard against overcurrent, overvoltage, undervoltage, overheating, overloads, short circuits and surges. Ready For Current Builds With ATX 3.1 compatibility, PCIe 5.1 graphics support and a ra