Product comparison · 2 power supply units

be quiet! Straight Power 11 vs Chieftec CSN-550C power supply unit

31specifications compared
20differ
11identical
39known for one product only

Key differences

Total power
- Straight Power 11:750 W
- CSN-550C power supply unit:550 W
AC input frequency
- Straight Power 11:50 - 60 Hz
- CSN-550C power supply unit:47 - 63 Hz
Input current
- Straight Power 11:10 A
- CSN-550C power supply unit:6 A
Power factor
- Straight Power 11:0.99
- CSN-550C power supply unit:0.9
Combined power (+3.3V)
- Straight Power 11:150 W
- CSN-550C power supply unit:90 W
Combined power (+5V)
- Straight Power 11:150 W
- CSN-550C power supply unit:90 W
Max output current (+3.3V)
- Straight Power 11:25 A
- CSN-550C power supply unit:18 A
Max output current (+12V1)
- Straight Power 11:20 A
- CSN-550C power supply unit:45.8 A

Side by side

Differences highlightedShow differences only

Comparison of Straight Power 11, CSN-550C
70 specifications	A be quiet! Straight Power 11 View product	B Chieftec CSN-550C power supply unit Model CSN-550C View product
Power12 differ
Total powerDiffers	750 W	550 W
Peak powerKnown for one	820 W	Unknown — not stated by the source
AC input voltage	100 - 240 V	100 - 240 V
AC input frequencyDiffers	50 - 60 Hz	47 - 63 Hz
Input currentDiffers	10 A	6 A
Power factorDiffers	0.99	0.9
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	150 W	90 W
Combined power (+12V)Known for one	750 W	Unknown — not stated by the source
Combined power (+5V)Differs	150 W	90 W
Combined power (-12V)Known for one	6 W	Unknown — not stated by the source
Combined power (+5Vsb)Known for one	15 W	Unknown — not stated by the source
Max output current (+3.3V)Differs	25 A	18 A
Max output current (+12V1)Differs	20 A	45.8 A
Max output current (+12V2)Known for one	20 A	Unknown — not stated by the source
Max output current (+12V3)Known for one	24 A	Unknown — not stated by the source
Max output current (+12V4)Known for one	24 A	Unknown — not stated by the source
Max output current (+5V)Differs	25 A	15 A
Max output current (-12V)Differs	0.5 A	0.3 A
Max output current (+5Vsb)	3 A	3 A
EfficiencyDiffers	93%	90%
Hold timeKnown for one	19.6 ms	Unknown — not stated by the source
Power protection featuresDiffers	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage	Over current, Over voltage, Overheating, Overload, Short circuit, Under voltage
Ports & interfaces2 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Motherboard power cable lengthKnown for one	60 cm	Unknown — not stated by the source
Number of PATA power connectorsKnown for one	4	Unknown — not stated by the source
Number of SATA power connectorsDiffers	11	4
SATA power cable lengthKnown for one	550 mm	Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Differs	4	2
PCI Express power cable lengthKnown for one	60 cm	Unknown — not stated by the source
CPU power connector (4+4 pin)	Yes	Yes
CPU power cable lengthKnown for one	70 cm	Unknown — not stated by the source
Floppy disk drive connectorKnown for one	Yes	Unknown — not stated by the source
PCI Express connectorKnown for one	Yes	Unknown — not stated by the source
Cabling type	Fully-Modular	Fully-Modular
Peripheral (Molex) power connectors (4-pin)Known for one	Unknown — not stated by the source	3
ATX power connector (20+4 pin)Known for one	Unknown — not stated by the source	Yes
Floppy drive power connectorKnown for one	Unknown — not stated by the source	1
Performance2 differ
Purpose	PC	PC
Power supply unit (PSU) form factorDiffers	ATX	PS/2
80 PLUS certification	80 PLUS Gold	80 PLUS Gold
ATX versionDiffers	2.4	2.3
EPS versionKnown for one	2.92	Unknown — not stated by the source
Silent modeKnown for one	Yes	Unknown — not stated by the source
Bearing technologyKnown for one	FDB	Unknown — not stated by the source
Design1 differ
Product colour	Black	Black
Cooling typeKnown for one	Active	Unknown — not stated by the source
Fan diameterDiffers	13.5 cm	8 cm
Number of fans	1 fan(s)	1 fan(s)
IlluminationKnown for one	No	Unknown — not stated by the source
On/off switchKnown for one	Yes	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
CertificationKnown for one	CE, FCC, TÜV, cTUVus, RCM, BSMI, CU	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	150 mm	125 mm
DepthDiffers	170 mm	100 mm
HeightDiffers	86 mm	64 mm
WeightKnown for one	1.78 kg	Unknown — not stated by the source
Packaging dataidentical
ManualKnown for one	Yes	Unknown — not stated by the source
Package widthKnown for one	248 mm	Unknown — not stated by the source
Package depthKnown for one	328 mm	Unknown — not stated by the source
Package heightKnown for one	102 mm	Unknown — not stated by the source
Package weightKnown for one	3.34 kg	Unknown — not stated by the source
Technical detailsidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) code	84733020	84733020
Other featuresidentical
Screws includedKnown for one	Yes	Unknown — not stated by the source
Cable ties includedKnown for one	Yes	Unknown — not stated by the source
Noise level (silent mode, <30%)Known for one	8.4 dB	Unknown — not stated by the source
Noise level (quiet mode, 50%)Known for one	9.01 dB	Unknown — not stated by the source
Noise level (full-load mode, 100%)Known for one	21.23 dB	Unknown — not stated by the source
Cable managementKnown for one	Yes	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.