Highlights
Proven Reliability and Good Efficiency Specially designed by be quiet! with the price-concious PC builder in mind: System Power B9 300W (bulk) offers renowned be quiet! performance and quietness and makes it possible for you to build cost-effective and reliable systems. - Production-optimized bulk packaging - Rock-solid stability with two strong 12V-rails - Temperature-controlled 120mm fan reduces system noise - Low stand-by drain of less than 0.13 watts - Certified 80PLUS® efficiency (up to 87%) - Complete suite of top safety features - Meets latest Intel® C6/C7, ErP and Energy Star 6.1 guidelines - Supports latest Intel® and AMD™ processors - 3-year manufacturer’s warranty - Product conception, design and quality control in GermanySpecifications
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Total power
300 W
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AC input voltage
200 - 240 V
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AC input frequency
50 Hz
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Input current
2.5 A
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Power factor
0.95
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Power Factor Correction (PFC) type
Active
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Combined power (+3.3V)
103 W
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Combined power (+12V)
276 W
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Combined power (+5V)
103 W
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Combined power (-12V)
3.6 W
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Combined power (+5Vsb)
12.5 W
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Max output current (+3.3V)
17 A
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Max output current (+12V1)
18 A
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Max output current (+12V2)
14 A
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Max output current (+5V)
15 A
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Max output current (-12V)
0.3 A
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Max output current (+5Vsb)
2.5 A
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Hold time
17 ms
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Efficiency
87%
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Power protection features
Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
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Motherboard power connector
20+4 pin ATX
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Motherboard power cable length
45 cm
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Number of SATA power connectors
4
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Number of PATA power connectors
2
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SATA power cable length
400 mm
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CPU P4 connector (4-pin)
1
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CPU power cable length
45 cm
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Cabling type
Non-Modular
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Purpose
PC
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Power supply unit (PSU) form factor
ATX
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80 PLUS certification
80 PLUS
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ATX version
2.4
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Silent mode
Y
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Certification
CE, CB, TÜV, RCM, CU
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Product colour
Grey
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Fan diameter
12 cm
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Number of fans
1 fan(s)
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Illumination
N
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On/off switch
Y
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Cables included
AC
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Width
150 mm
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Depth
140 mm
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Height
86 mm
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Weight
1.52 kg
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Sustainability certificates
RoHS, ENERGY STAR
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Noise level (silent mode, <30%)
11.6 dB
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Noise level (quiet mode, 50%)
12.1 dB
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Noise level (full-load mode, 100%)
23.1 dB
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Warranty Info
3 years