Product comparison · 2 power supply units

be quiet! BN134 power supply unit vs be quiet! BQT L7-300W

51specifications compared
23differ
28identical
13known for one product only

Key differences

Total power
- BN134 power supply unit:350 W
- BQT L7-300W:300 W
Input current
- BN134 power supply unit:4.5 A
- BQT L7-300W:5 A
Power factor
- BN134 power supply unit:0.9
- BQT L7-300W:0.99
Combined power (+3.3V)
- BN134 power supply unit:60 W
- BQT L7-300W:70 W
Combined power (+12V)
- BN134 power supply unit:200 W
- BQT L7-300W:252 W
Combined power (+5V)
- BN134 power supply unit:65 W
- BQT L7-300W:40 W
Combined power (-12V)
- BN134 power supply unit:6 W
- BQT L7-300W:3.6 W
Max output current (+3.3V)
- BN134 power supply unit:20 A
- BQT L7-300W:21 A

Side by side

Differences highlightedShow differences only

Comparison of BN134, BQT L7-300W
64 specifications	A be quiet! BN134 power supply unit Model BN134 View product	B be quiet! BQT L7-300W View product
Power12 differ
Total powerDiffers	350 W	300 W
Input currentDiffers	4.5 A	5 A
Maximum input current (@110V)Known for one	Unknown — not stated by the source	+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers	0.9	0.99
Combined power (+3.3V)Differs	60 W	70 W
Combined power (+12V)Differs	200 W	252 W
Combined power (+5V)Differs	65 W	40 W
Combined power (-12V)Differs	6 W	3.6 W
Max output current (+3.3V)Differs	20 A	21 A
Max output current (+12V)Differs	30 A	21 A
Max output current (+5V)Differs	22 A	15 A
Max output current (-12V)Differs	0.5 A	0.3 A
EfficiencyDiffers	86%	87%
Hold timeKnown for one	17 ms	Unknown — not stated by the source
Ports & interfaces2 differ
Number of SATA power connectorsDiffers	2	3
Peripheral (Molex) power connectors (4-pin)Differs	3	2
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
PCI Express power connectors (6-pin)Known for one	1	Unknown — not stated by the source
Performance1 differ
Power supply unit (PSU) form factorDiffers	SFX	ATX
ATX versionKnown for one	Unknown — not stated by the source	2.3
EPS versionKnown for one	Unknown — not stated by the source	2.92
Noise levelKnown for one	Unknown — not stated by the source	19 dB
Bearing technologyKnown for one	Unknown — not stated by the source	FDB
Compatible productsKnown for one	Unknown — not stated by the source	Intel C6
Design1 differ
Fan diameterDiffers	8 cm	12 cm
Fan speedKnown for one	4000	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	10 - 50 °C	5 - 40 °C
Certificates1 differ
CertificationDiffers	WEEE, EU 2002/95/EG RoHS	ErP, WEEE
Weight & dimensions3 differ
WidthDiffers	125 mm	150 mm
DepthDiffers	100 mm	150 mm
HeightDiffers	63.5 mm	85 mm
WeightKnown for one	1 kg	Unknown — not stated by the source
Other features2 differ
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	140 x 150 x 85 mm
Parallel processing technology supportDiffers	Not supported	Hybrid CrossFireX
Power managementDiffers	No	Yes
Package dimensions (WxDxH)Known for one	199 x 195 x 75 mm	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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