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
Maximum input current (@110V)Known for one	Unknown — not stated by the source	+12V,+3.3V,-12V
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
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
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
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
Design1 differ
Product colourDiffers	Grey	Silver
On/off switchKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
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.

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