Product comparison · 2 power supply units

Chieftec APS-400SB power supply unit vs Chieftec APS-550SB power supply unit

24specifications compared
8differ
16identical
15known for one product only

Key differences

Total power
- APS-400SB power supply unit:400 W
- APS-550SB power supply unit:550 W
Max output current (+3.3V)
- APS-400SB power supply unit:20 A
- APS-550SB power supply unit:22 A
Max output current (+5V)
- APS-400SB power supply unit:20 A
- APS-550SB power supply unit:22 A
Power supply unit (PSU) form factor
- APS-400SB power supply unit:PS/2
- APS-550SB power supply unit:ATX
Product colour
- APS-400SB power supply unit:Grey
- APS-550SB power supply unit:Silver
Depth
- APS-400SB power supply unit:155 mm
- APS-550SB power supply unit:87 mm
Height
- APS-400SB power supply unit:87 mm
- APS-550SB power supply unit:155 mm

Side by side

Differences highlightedShow differences only

Comparison of APS-400SB, APS-550SB
39 specifications	A Chieftec APS-400SB power supply unit Model APS-400SB View product	B Chieftec APS-550SB power supply unit Model APS-550SB View product
Power4 differ
Total powerDiffers	400 W	550 W
AC input voltage	115 - 230 V	115 - 230 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Maximum input current (@110V)Known for one	Unknown — not stated by the source	+12V,+3.3V,-12V
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Known for one	Unknown — not stated by the source	120 W
Combined power (+5V)Known for one	Unknown — not stated by the source	120 W
Max output current (+3.3V)Differs	20 A	22 A
Max output current (+5V)Differs	20 A	22 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	2.5 A	2.5 A
Power protection featuresDiffers	Over current, Over voltage, Overheating, Overload, Short circuit, Under voltage	Over current, Over voltage, Overload, Short circuit, Under voltage
Power factorKnown for one	0.9	Unknown — not stated by the source
Max output current (+12V1)Known for one	16 A	Unknown — not stated by the source
Max output current (+12V2)Known for one	16 A	Unknown — not stated by the source
EfficiencyKnown for one	85%	Unknown — not stated by the source
Ports & interfacesidentical
Motherboard power connector	24-pin ATX	24-pin ATX
Peripheral (Molex) power connectors (4-pin)	3	3
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
PCI Express power connectors (6+2 pin)Known for one	Unknown — not stated by the source	1
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
Floppy drive power connector	1	1
Cabling type	Non-Modular	Non-Modular
Number of SATA power connectorsKnown for one	3	Unknown — not stated by the source
PCI Express power connectors (6-pin)Known for one	1	Unknown — not stated by the source
Performance1 differ
PurposeKnown for one	Unknown — not stated by the source	PC
Power supply unit (PSU) form factorDiffers	PS/2	ATX
80 PLUS certification	80 PLUS Bronze	80 PLUS Bronze
ATX version	2.3	2.3
Mean time between failures (MTBF)	100000 h	100000 h
Design1 differ
Product colourDiffers	Grey	Silver
Cooling type	Active	Active
Fan diameter	14 cm	14 cm
Number of fans	1 fan(s)	1 fan(s)
On/off switchKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
Width	150 mm	150 mm
DepthDiffers	155 mm	87 mm
HeightDiffers	87 mm	155 mm
Certificatesidentical
Compliance certificatesKnown for one	RoHS	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.

More power supply unit comparisons

All power supply unit comparisons