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be quiet! System Power 11 550W power supply unit 20+4 pin ATX ATX Black - Back to the Office recorded price
Recorded retailer listing: This is a dated Back to the Office price, not an automatically refreshed offer. Check delivery and availability with the retailer.
be quiet! System Power 11 550W power supply unit 20+4 pin ATX ATX Black
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be quiet! Electronics & Computing
Product description
ATX 3.1 PSU with support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors. Temperature-controlled 120mm quality fan reduces system noise. Rock-solid stability with a strong 12V-rail. Tight voltage regulation using DC-to-DC technology. One PCIe 5.1 12V-2x6 300W and 2 PCIe 6-2 connectors. Dependable operation to support powerful GPUs. Stand-by drain of less than 0.15 watts. 80 PLUS® Bronze efficiency (up to 89.7%). Attractive black flat cables. Complete suite of top safety features. Product conception, design and quality control in Germany. Proven Reliability, Quiet Operation. System Power 11 550W has been built with value-oriented users in mind that do not want to pass on reliability and quietness. Elaborated features such as ATX 3.1 compatibility and a temperature-controlled fan underline the value System Power 11 550W offers even at entry-level.. Power. Total power. 550 W. AC input voltage. 200 - 240 V. AC input frequency. 50 Hz. Input current. 4 A. Power factor. 0.98. Number of +12V rail(s). 1. Combined power (+3.3V). 120 W. Combined power (+12V). 550 W. Combined power (+5V). 120 W. Combined power (-12V). 3.6 W. Combined power (+5Vsb). 15 W. Max output current (+3.3V). 20 A. Max output current (+12V1). 45.83 A. Max output current (+5V). 20 A. Max output current (-12V). 0.3 A. Max output current (+5Vsb). 3 A. Efficiency. 89.7%. Hold time. 16.86 ms. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage. Ports & interfaces. Motherboard power connector. 20+4 pin ATX. Number of SATA power connectors. 5. Peripheral (Molex) power connectors (4-pin). 1. PCI Express power connectors (6+2 pin). 2. PCI Express power connectors (12-pin). 1. CPU P4 connector (4-pin). 1. CPU power connector (4+4 pin). Yes. PCI Express connector. Yes. Cabling type. Non-Modular. Performance. Purpose. PC. Power supply unit (PSU) form factor. ATX. 80 PLUS certification. 80 PLUS Bronze. ATX version. 3.1. EPS version. 2.92. Nois
Retailer feed snapshot imported on 21 October 2026. Not live-checked or automatically refreshed. Confirm delivery, stock and final price at the retailer.
Back to the Office
United Kingdom · GBP
Recorded item price
£56.99
Recorded feed date not supplied; imported 21 Oct 2026 · Not automatically refreshed
Delivery: Charges unknown; not included above.
Availability: Feed reports available; confirm current stock at the retailer.
Listings marked as checked daily are refreshed on a schedule. Other recorded prices are not automatically refreshed. Unconfirmed delivery costs are excluded. Overseas availability is not implied. Other-country offer conversions use approximate exchange rates. Always confirm the final price at the retailer.
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