Product comparison · 2 power supply units

Chieftec SFX-250VS power supply unit vs UNYKAch 51980 power supply unit

23specifications compared
15differ
8identical
24known for one product only

Key differences

Total power
- SFX-250VS power supply unit:250 W
- 51980 power supply unit:550 W
Power Factor Correction (PFC) type
- SFX-250VS power supply unit:Active
- 51980 power supply unit:Passive
Max output current (+3.3V)
- SFX-250VS power supply unit:14 A
- 51980 power supply unit:30 A
Max output current (+12V1)
- SFX-250VS power supply unit:18.5 A
- 51980 power supply unit:24 A
Max output current (+5V)
- SFX-250VS power supply unit:15 A
- 51980 power supply unit:32 A
Max output current (-12V)
- SFX-250VS power supply unit:0.3 A
- 51980 power supply unit:0.5 A
Max output current (+5Vsb)
- SFX-250VS power supply unit:3 A
- 51980 power supply unit:2 A
Efficiency
- SFX-250VS power supply unit:85%
- 51980 power supply unit:75%

Side by side

Differences highlightedShow differences only

Comparison of SFX-250VS, 51980
47 specifications	A Chieftec SFX-250VS power supply unit Model SFX-250VS View product	B UNYKAch 51980 power supply unit Model 51980 View product
Power8 differ
Total powerDiffers	250 W	550 W
Power Factor Correction (PFC) typeDiffers	Active	Passive
Max output current (+3.3V)Differs	14 A	30 A
Max output current (+12V1)Differs	18.5 A	24 A
Max output current (+5V)Differs	15 A	32 A
Max output current (-12V)Differs	0.3 A	0.5 A
Max output current (+5Vsb)Differs	3 A	2 A
EfficiencyDiffers	85%	75%
Power protection featuresKnown for one	Unknown — not stated by the source	Over current, Over voltage, Overload, Short circuit, Under voltage
AC input frequencyKnown for one	50 Hz	Unknown — not stated by the source
Input currentKnown for one	3 A	Unknown — not stated by the source
Power factorKnown for one	0.9	Unknown — not stated by the source
Combined power (+3.3V)Known for one	80 W	Unknown — not stated by the source
Combined power (+5V)Known for one	80 W	Unknown — not stated by the source
Combined power (-12V)Known for one	3.6 W	Unknown — not stated by the source
Combined power (+5Vsb)Known for one	15 W	Unknown — not stated by the source
Ports & interfacesidentical
Motherboard power cable lengthKnown for one	Unknown — not stated by the source	30 cm
SATA power cable lengthKnown for one	Unknown — not stated by the source	330,480 mm
Peripheral (Molex) power cable lengthKnown for one	Unknown — not stated by the source	330,480 mm
PCI Express power connectors (6+2 pin)Known for one	Unknown — not stated by the source	1
PCI Express power cable lengthKnown for one	Unknown — not stated by the source	32 cm
CPU power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes
CPU power cable lengthKnown for one	Unknown — not stated by the source	32 cm
Floppy disk drive cable lengthKnown for one	Unknown — not stated by the source	65 cm
Floppy disk drive connectorKnown for one	Unknown — not stated by the source	Yes
Floppy drive power connectorKnown for one	1	Unknown — not stated by the source
Cabling typeKnown for one	Non-Modular	Unknown — not stated by the source
Performance1 differ
Power supply unit (PSU) form factorDiffers	SFX	ATX
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	100000 h
Design2 differ
Product colourDiffers	Silver	Black
Fan diameterDiffers	8 cm	12 cm
Fan locationKnown for one	Unknown — not stated by the source	Top
On/off switchKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	10 - 50 °C
Certificates1 differ
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS
CertificationDiffers	UVP; OVP; SCP; OPP; AFC;	EN60950, CE, TÜV
Weight & dimensions3 differ
WidthDiffers	100 mm	140 mm
DepthDiffers	125 mm	150 mm
HeightDiffers	64 mm	85 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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