be quiet! System Power 11 550W ATX 3.1 PCIe 5.1 80 Plus Bronze Power Supply

Description

be quiet! System Power 11 550 W – 80 PLUS Bronze ATX 3.1 Power Supply

The be quiet! System Power 11 550 W offers dependable performance in an affordably-priced package. Designed with ATX 3.1 compatibility and a temperature-controlled fan, it ensures quiet operation and modern GPU support through a 12V-2×6 connector—perfect for value-focused builds that demand reliability.

Key Features:

ATX 3.1 Standard – Future-ready with native 12V-2×6 (PCIe 5.1) connector and two PCIe 6+2 outputs
80 PLUS Bronze Efficiency – Up to ~89.7% efficient for lower energy use and heat
Temperature-Controlled 120 mm Fan – Runtime-optimized cooling with whisper-quiet operation
Stable Single 12 V Rail – Strong, consistent power delivery for demanding components
DC-to-DC Regulation – Tight voltage control for enhanced system stability
Ultra-Low Standby Power – Less than 0.1 W in modern standby mode
Comprehensive Protections – Safeguards include OVP, OCP, OPP, SCP, UVP, OTP, and surge protection
Reliable and Silent – Built for quiet, long-term performance in cost-effective systems

Technical Specifications:

Specification	Details
Model	System Power 11 550 W
Form Factor	ATX 3.1 / EPS 2.92
Efficiency	80 PLUS Bronze (~89.7%)
Fan	120 mm temperature-controlled
Voltage Topology	Double forward + DC–DC
Output Rail	Single 12 V rail (45.8 A / 550 W)
Standby Power	<0.1 W
Efficiency (230 V)	20% load: ~88.6%, 50% load: ~89.7%, 100% load: ~86.6%
Noise Level	From ~10.8 dB(A) at 20% load, up to ~24.2 dB(A) at full load
Connectors	1× ATX 24-pin, 1× CPU 4+4-pin, 1× 12V-2×6, 2× PCIe 6+2, 5× SATA, 1× Molex
Protections	OVP, OCP, OPP, SCP, UVP, OTP, SIP
MTBF	>100,000 hours
Warranty	3 Years

A cost-effective and ultra-quiet power solution, the System Power 11 550 W brings modern GPU compatibility, proven stability, and efficiency—ideal for practical, value-conscious builds.

Specifications

Power Specifications
Total Power Output	550 W
Power Output +12V rails	550 W
Colour
Primary Colour	Black
Efficiency Class
80PLUS Efficiency	80 PLUS Bronze
Dimensions
Length / Depth	140 mm
Width	150 mm
Height	86 mm
Lighting
Lighting / RGB	No
Fan Specifications
Fan Size	120 mm
Power Supply
PSU Format	ATX
ATX Standard	ATX 3.1
12V Distribution	single rail
Modular Power Supply	No
Internal Ports
CPU Power Connectors 12V ATX/EPS	2
CPU Power Supply	1x 4-Pin + 1x 4+4-Pin
12V-2×6 Power Connectors	1
12VHPWR PCIe Power Connectors	1
8 Pin PCIe Power Connectors	1
6+2 Pin PCIe Power Connectors	2
SATA Power Connectors	5
Cooling
Semi Passive Power Supply	Yes
Cable Specifications
Max. CPU Power Cable Length	550 mm
Max. 24-Pin Motherboard Power Cable Length	600 mm

Reviews

There are no reviews yet.

Be the first to review “be quiet! System Power 11 550W ATX 3.1 PCIe 5.1 80 Plus Bronze Power Supply”

Computer Parts

Gaming & Consoles

Software & Tools

Modding Products

Printers & Office

Peripherals & Accessories