Product comparison · 2 power supply units

Chieftec SFX-250VS power supply unit vs UNYKAch MATX SFX

28specifications compared
14differ
14identical
10known for one product only

Key differences

Total power
- SFX-250VS power supply unit:250 W
- MATX SFX:300 W
AC input voltage
- SFX-250VS power supply unit:230 V
- MATX SFX:110 - 230 V
AC input frequency
- SFX-250VS power supply unit:50 Hz
- MATX SFX:50 - 60 Hz
Input current
- SFX-250VS power supply unit:3 A
- MATX SFX:2 A
Combined power (+3.3V)
- SFX-250VS power supply unit:80 W
- MATX SFX:49.8 W
Combined power (+5V)
- SFX-250VS power supply unit:80 W
- MATX SFX:49.8 W
Combined power (+5Vsb)
- SFX-250VS power supply unit:15 W
- MATX SFX:10 W
Max output current (+3.3V)
- SFX-250VS power supply unit:14 A
- MATX SFX:6 A

Side by side

Differences highlightedShow differences only

Comparison of SFX-250VS, MATX SFX
38 specifications	A Chieftec SFX-250VS power supply unit Model SFX-250VS View product	B UNYKAch MATX SFX View product
Power10 differ
Total powerDiffers	250 W	300 W
AC input voltageDiffers	230 V	110 - 230 V
AC input frequencyDiffers	50 Hz	50 - 60 Hz
Input currentDiffers	3 A	2 A
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	80 W	49.8 W
Combined power (+12V)Known for one	Unknown — not stated by the source	240 W
Combined power (+5V)Differs	80 W	49.8 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)Differs	15 W	10 W
Max output current (+3.3V)Differs	14 A	6 A
Max output current (+12V)Known for one	Unknown — not stated by the source	20 A
Max output current (+5V)Differs	15 A	6 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)Differs	3 A	2 A
Efficiency	85%	85%
Power protection featuresKnown for one	Unknown — not stated by the source	Over current, Over voltage, Short circuit, Under voltage
Power factorKnown for one	0.9	Unknown — not stated by the source
Max output current (+12V1)Known for one	18.5 A	Unknown — not stated by the source
Ports & interfaces1 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectorsDiffers	2	3
Peripheral (Molex) power connectors (4-pin)	2	2
CPU power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes
Cabling type	Non-Modular	Non-Modular
ATX power connector (20+4 pin)Known for one	Yes	Unknown — not stated by the source
Floppy drive power connectorKnown for one	1	Unknown — not stated by the source
Performanceidentical
Purpose	PC	PC
Power supply unit (PSU) form factor	SFX	SFX
ATX version	2.3	2.3
Design1 differ
Product colourDiffers	Silver	Aluminium
Fan diameter	8 cm	8 cm
Number of fans	1 fan(s)	1 fan(s)
Fan locationKnown for one	Unknown — not stated by the source	Top
Certificates1 differ
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
CertificationDiffers	UVP; OVP; SCP; OPP; AFC;	CE EN60950 TÜV ErP OVP/UVP/OTP/OCP/OLP/OPP/SCP/ETC APFC
Weight & dimensions1 differ
Width	100 mm	100 mm
Depth	125 mm	125 mm
HeightDiffers	64 mm	63 mm

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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