be quiet! System Power 11 450W

450 W · 80+ Bronze · Non-modular

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Wattage 450 W
Efficiency 80+ Bronze
Modular Non-modular
Form factor ATX

be quiet! System Power 11 450W is a 450 W power supply rated 80+ Bronze (non-modular). Pick one with some headroom above your build's draw. It came out in 2025.

Released: 2025-04-26

Specifications

Key specs

Wattage: 450 W
Efficiency: 80+ Bronze
Modular: Non-modular
Form factor: ATX
Released: 2025-04-26
Part number: BP009EU
EAN / UPC: 4260052191859

Power

Total power: 450 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): 110 W
Combined power (+12V): 450 W
Combined power (+5V): 110 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 15 W
Max output current (+3.3V): 20 A
Max output current (+12V1): 37.5 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 3 A
Hold time: 16.86 ms
Efficiency: 89%
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
CPU power connector (4+4 pin): Yes
PCI Express connector: Yes
Cabling type: Non-Modular

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Performance

80 PLUS certification: 80 PLUS Bronze
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 3.1
EPS version: 2.92
Noise level: 19.1 dB
Bearing technology: Rifle
Mean time between failures (MTBF): 100000 h

Design

Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
Fan speed: 0 - 1800 RPM
On/off switch: Yes

Weight & dimensions

Width: 150 mm
Depth: 86 mm
Height: 140 mm
Weight: 1.7 kg

Technical details

Sustainability certificates: ENERGY STAR, ErP

Other features

Screws included: Yes
Cable ties included: Yes

Check the manufacturer's page before buying.

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About this product

Proven Reliability, Quiet Operation System Power 11 450W has been built with value-oriented users in mind that do not want to pass on reliability and quietness. Elaborate features such as ATX 3.1 compatibility and a temperature-controlled fan and a remarkably low stand-by-drain underline the value System Power 11 450W offers even at entry-level.

User manual (PDF) · Datasheet (PDF)

System Power 11 450W vs similar power supplies

	be quiet! System Power 11 450W	FSP HYPER 80+ PRO 450W Power supply unit ATX ATX3.1 Black	be quiet! System Power 11 550W	FSP VIC BD 550W Power supply unit ATX ATX3.1 Black
Wattage	450 W	450 W	550 W	550 W
Efficiency	80+ Bronze	80+ Bronze	80+ Bronze	80+ Bronze
Modular	Non-modular	Non-modular	Non-modular	Non-modular
Form factor	ATX	ATX	ATX	ATX
Released	2025	2024	2025	2025