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be quiet! System Power 10 BN327

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be quiet! System Power 10 BN327
2022System Power (available)5 year warranty
450 W
24+8 (4+4) pin
80+ Bronze
550 W
24+8+4 pin
80+ Bronze
650 W
24+8+4 pin
80+ Bronze
750 W
24+8+8(4+4) pin
80+ Bronze
850 W
24+8+8(4+4) pin
80+ Gold
Main
Power550 W
Form factorATX
Specs
PFCactive
Efficiency89 % / 50% load /
Cooling systemactive (fan)
Fan size120 mm
Fan bearingsliding
Certification80+ Bronze
ATX12V version2.52
EPS12V version2.92
Power connectors
MB/CPU power supply24+8+4 pin
SATA6
MOLEX1
PCI-E 8pin (6+2)2
Cable systemnon-modular
Cable length
MB550 mm
CPU600 mm
SATA450 mm
MOLEX790 mm
PCI-E500 mm
Max. power
+3.3V20 А
+5V20 А
+12V145.8 А
-12V0.3 А
+5Vsb3 А
+12V550 W
+3.3V +5V120 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOTP, OCP, UVP, SIP
Noise level10 dB
Manufacturer's warranty5 years
Dimensions (HxWxD)86x150x140 mm
Weight1.83 kg
Official Websitebequiet.com
Added to E-CatalogDecember 2022

The be quiet! System Power 10 550W power supply is the best choice for users looking for a balance between reliability and affordability. With 80 PLUS Bronze certification, this power supply provides 85% efficiency, ensuring minimal energy loss and reducing overall system power consumption compared to more affordable PSUs. The manufacturer positions it as the best solution for assembling entry-level and mid-level gaming systems.

The PSU is equipped with an active power factor correction (PFC) system and DC-DC conversion technology. Two 12V channels with a maximum power of 550W guarantee reliable power supply for modern processors and video cards. The built-in cooling system is equipped with a 120mm fan with sleeve bearings. The noise level declared by the manufacturer at peak loads does not exceed 31 dB.

In addition, the power supply is equipped with a full set of protective functions, including overvoltage protection (OVP), short circuit protection (SCP), overheating protection (OTP) and other types of protection, and the manufacturer offers a 5-year warranty, confirming the high quality and reliability of this device. Relatively compact dimensions (86x150x140 mm) allow it to be easily integrated into most standard and miniature cases.

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog be quiet! 2025 - new arrivals, bestsellers, and the most relevant models be quiet!.
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be quiet System Power 10 550W power supply temperature-controlled 120mm quality fan strong 12V rail DC-to-DC technology 80 P

System Power 10 550W is equipped with a temperature-controlled 120mm quality fan. It provides the low noise operation that be... morequiet! is famous for, offering remarkable quietness at this price-level. System Power 10 550W provides stable and dependable power for CPU and GPU. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load. The 80 PLUS Bronze certification of System Power 10 550W Bronze with an efficiency rating of up to 89.1% is convincing evidence of this PSU’s power saving operation. System Power 10 550W provides enough power for demanding graphics cards. Safety protections defend against overcurrents, over- and undervoltages, overtemperature, short circuits and overloads, thus keeping your valuable components safe.
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be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Bl BN327

PROVEN RELIABILITY. QUIET OPERATIONSystem Power 10 550W has been built with price-conscious users in mind that do not want to... moredispense on reliability and quietness. Elaborated features such as a temperature-controlled fan and a remarkably low stand-by-drain underline the value System Power 10 550W offers even at entry-level. VERY QUIET OPERATIONHigh-quality fan for low noiseSystem Power 10 550W is equipped with a temperature-controlled 120mm quality fan. It provides the low noise operation that be quiet! is famous for. offering remarkable quietness at this price-level.HIGH PERFORMANCE FOR YOUR SYSTEMProven reliability for CPU and GPUSystem Power 10 550W provides stable and dependable power for CPU and GPU. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.80 PLUS® BRONZE CERTIFICATIONEfficient operationThe 80 PLUS Bronze certification of System Power 10 550W Bronze with an efficiency rating of up to 89.1% is convincing evidence of this PSU's power saving operation.STRONG 12V RAILFor a stable PCIe graphics supportSystem Power 10 550W provides enough power for demanding graphics cards. Safety protections defend against overcurrents. over- and undervoltages. overtemperature. short circuits and overloads. thus keeping your valuable components safe.
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£53.27
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be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Bl BN327

be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Black
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be quiet! be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Black BN327

Temperature-controlled 120mm quality fan reduces system noise Rock-solid stability with a strong 12V-rail Tight voltage regul... moreation using DC-to-DC technology Dependable operation to support powerful GPUs Stand-by drain of less than 0.15 watts 80 PLUS® Bronze efficiency (up to 89.1%) Attractive black flat cables Complete suite of top safety features PROVEN RELIABILITY, QUIET OPERATIONSystem Power 10 550W has been built with price-conscious users in mind that do not want to dispense on reliability and quietness. Elaborated features such as a temperature-controlled fan and a remarkably low stand-by-drain underline the value System Power 10 550W offers even at entry-level. VERY QUIET OPERATIONHigh-quality fan for low noiseSystem Power 10 550W is equipped with a temperature-controlled 120mm quality fan. It provides the low noise operation that be quiet! is famous for, offering remarkable quietness at this price-level.HIGH PERFORMANCE FOR YOUR SYSTEMProven reliability for CPU and GPUSystem Power 10 550W provides stable and dependable power for CPU and GPU. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.80 PLUS® BRONZE CERTIFICATIONEfficient operationThe 80 PLUS Bronze certification of System Power 10 550W Bronze with an efficiency rating of up to 89.1% is convincing evidence of this PSU’s power saving operation.STRONG 12V RAILFor a stable PCIe graphics supportSystem Power 10 550W provides enough power for demanding graphics cards. Safety protections defend against overcurrents, over- and undervoltages, overtemperature, short circuits and overloads, thus keeping your valuable components safe. Power Power protection features Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage Hold time 17 ms Efficiency 89.1% Power Good signal delay range 100 - 150 ms Max output current (+5Vsb) 3 A Max output current (-12V) 0.3 A Max output current (+5V) 20 A Max output current (+12V) 45.83 A Max output current (+3.3V) 20 A Combined power (+5Vsb) 15 W Combined power (-12V) 3.6 W Combined power (+5V) 120 W Combined power (+12V) 550 W Combined power (+3.3V) 120 W Power Factor Correction (PFC) type Active Power factor 0.95 Input current 4 A AC input frequency 50 Hz AC input voltage 200 - 240 V Total power 550 W Ports & interfaces Cabling type Non-Modular ATX power connector (20+4 pin) Yes CPU power cable length 60 cm CPU power connector (4+4 pin) Yes CPU P4 connector (4-pin) 1 PCI Express power cable length 65 cm PCI Express power connectors (6+2 pin) 2 Peripheral (Molex) power cable length 790 mm Peripheral (Molex) power connectors (4-pin) 1 SATA power cable length 450,550,570,670,690 mm Number of PATA power connectors 1 Number of SATA power connectors 5 Motherboard power cable length 55 cm Motherboard power connector 20+4 pin ATX Performance Mean time between failures (MTBF) 100000 h Bearing technology Sleeve Noise level 25.7 dB EPS version 2.92 ATX version 2.52 80 PLUS certification 80 PLUS
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£51.99
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be quiet! System Power B10 550 W 200 - 240 V 50 Hz 4 A Active 120 W BN327

System Power 10 550W has been built with price-conscious users in mind that do not want to dispense on reliab... moreility and quietness. Elaborated features such as a temperature-controlled fan and a remarkably low stand-by-drain underline the value System Power 10 550W offers even at entry-level.      - Temperature-controlled 120mm quality fan reduces system noise - Rock-solid stability with a strong 12V-rail - Tight voltage regulation using DC-to-DC technology - Dependable operation to support powerful GPUs - Stand-by drain of less than 0.15 watts - 80 PLUS® Bronze efficiency (up to 89.1%) - Attractive black flat cables - Complete suite of top safety features - 5-year manufacturer’s warranty        Very Quiet Operation High-quality fan for low noise System Power 10 550W is equipped with a temperature-controlled 120mm quality fan. It provides the low noise operation that be quiet! is famous for offering remarkable quietness at this price-level.     High Performance For Your System Proven reliability for CPU and GPU System Power 10 550W provides stable and dependable power for CPU and GPU. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.     80 PLUS® Bronze Certification Efficient operation The 80 PLUS Bronze certification of System Power 10 550W Bronze with an efficiency rating of up to 89.1% is convincing evidence of this PSU’s power saving operation. Strong 12V Rail For a stable PCIe graphics support System Power 10 550W provides enough power for demanding graphics cards. Safety protections defend against overcurrents over- and undervoltages overtemperature short circuits and overloads thus keeping your valuable components safe.  
Quzo.co.uk
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£57.30
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4 more offer(s)
Series be quiet! System Power (available)Compare using chart →
be quiet! System Power 10 BN329
from £64.99 
750 W, 24+8+8(4+4) pin, 4 х 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
be quiet! System Power 10 BN328
from £54.99 
650 W, 24+8+4 pin, 2 х 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
be quiet! System Power 10 BN327
from £49.99 
550 W, 24+8+4 pin, 2 х 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
be quiet! System Power 10 BN330
from £88.79 
850 W, 24+8+8(4+4) pin, 4 х 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, certificate 80+ Gold, warranty 5 years
be quiet! System Power 10 BN326
from £38.99 
450 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
be quiet! System Power 9 BN246
from £83.38 
500 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 6, Molex 2, ATX, Efficiency 89 %, warranty 3 years
be quiet! System Power 9 CM BN300
from £51.12 
400 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 5, Molex 2, ATX, semi-modular, Efficiency 89 %, warranty 3 years

be quiet! System Power 10 configurations

Price for be quiet! System Power 10
be quiet! System Power 10 BN326from £38.999 offers
be quiet! System Power 10 BN327from £49.9910 offers
be quiet! System Power 10 BN328from £54.994 offers
be quiet! System Power 10 BN329from £64.996 offers
be quiet! System Power 10 BN330from £88.7910 offers
Video reviews
Unboxing and Review: Be Quiet! System Power 10 Power Supply - High-Efficiency and Low Noise
20 January 202334 286 view
System Power 10 | Product Presentation | be quiet!
18 October 202217 643 view

Advanced and Affordable Solution

The be quiet! System Power 10 BN327 power supply is a successful combination of quality, performance, and affordability. It is aimed at mid-level builds designed for working with media content, software development, 3D graphics, and gaming. It features a +12V line with a maximum load of 550W for connecting key components. Additionally, the power scheme includes two 8 PIN PCIe lines, allowing for the use of powerful graphics cards such as the Radeon RX 7700 XT or GeForce RTX 3070. One of the main advantages of this model is the active PFC, providing an efficiency of up to 89%, reducing heat emission, and saving energy. The efficiency of the unit is confirmed by the 80+ Bronze certification, and its reliability by a 5-year official warranty. Considering the brand's reputation and the device's characteristics, its cost can be deemed quite justified.

Automated Control and Safety

The be quiet! System Power 10 BN327 power supply does not require manual settings – its operation is entirely automated, minimizing the likelihood of malfunctions. An extended set of protective systems (OTP, OCP, UVP, SIP, OVP, OPP, SCP) prevents damage to both the device itself and connected components. The brand's traditional low noise level is confirmed by a sound level of around 10 dB at 50% load. The fan independently adjusts its rotation speed, maintaining the optimal temperature regime of the system.

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