Product comparison · 2 power supply units

Chieftec CPS-400S power supply unit vs Chieftec CPS-650S power supply unit

33specifications compared
7differ
26identical
4known for one product only

Key differences

Total power
- CPS-400S power supply unit:400 W
- CPS-650S power supply unit:650 W
Combined power (+3.3V)
- CPS-400S power supply unit:103 W
- CPS-650S power supply unit:120 W
Combined power (+5V)
- CPS-400S power supply unit:103 W
- CPS-650S power supply unit:120 W
Max output current (+3.3V)
- CPS-400S power supply unit:21 A
- CPS-650S power supply unit:22 A
Max output current (+12V1)
- CPS-400S power supply unit:30 A
- CPS-650S power supply unit:48.75 A
Max output current (+5V)
- CPS-400S power supply unit:15 A
- CPS-650S power supply unit:22 A
Number of SATA power connectors
- CPS-400S power supply unit:4
- CPS-650S power supply unit:6

Side by side

Differences highlightedShow differences only

Comparison of CPS-400S, CPS-650S
37 specifications	A Chieftec CPS-400S power supply unit Model CPS-400S View product	B Chieftec CPS-650S power supply unit Model CPS-650S View product
Power6 differ
Total powerDiffers	400 W	650 W
AC input voltage	230 V	230 V
AC input frequency	50 Hz	50 Hz
Maximum input current (@110V)	+12V1,+3.3V,+5V,+5Vsb	+12V1,+3.3V,+5V,+5Vsb
Power factor	0.9	0.9
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	103 W	120 W
Combined power (+5V)Differs	103 W	120 W
Max output current (+3.3V)Differs	21 A	22 A
Max output current (+12V1)Differs	30 A	48.75 A
Max output current (+5V)Differs	15 A	22 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	2.5 A	2.5 A
Efficiency	85%	85%
Power protection features	Over voltage, Overload, Short circuit, Under voltage	Over voltage, Overload, Short circuit, Under voltage
Ports & interfaces1 differ
Motherboard power connector	24-pin ATX	24-pin ATX
Number of SATA power connectorsDiffers	4	6
Peripheral (Molex) power connectors (4-pin)	2	2
PCI Express power connectors (6-pin)Known for one	1	Unknown — not stated by the source
CPU P4 connector (4-pin)Known for one	1	Unknown — not stated by the source
Cabling type	Non-Modular	Non-Modular
PCI Express power connectors (6+2 pin)Known for one	Unknown — not stated by the source	2
CPU power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes
Performanceidentical
Purpose	PC	PC
Power supply unit (PSU) form factor	PS/2	PS/2
ATX version	2.3	2.3
Designidentical
Product colour	Black	Black
Cooling type	Active	Active
Fan diameter	12 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
Fan location	Top	Top
On/off switch	Yes	Yes
Weight & dimensionsidentical
Width	150 mm	150 mm
Depth	140 mm	140 mm
Height	86 mm	86 mm
Packaging dataidentical
Manual	Yes	Yes
Other featuresidentical
Warranty card	Yes	Yes

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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