Product comparison · 2 power supply units

UNYKAch 51976 power supply unit vs UNYKAch MATX SFX

21specifications compared
13differ
8identical
18known for one product only

Key differences

Total power
- 51976 power supply unit:900 W
- MATX SFX:300 W
AC input voltage
- 51976 power supply unit:100 - 240 V
- MATX SFX:110 - 230 V
Efficiency
- 51976 power supply unit:80%
- MATX SFX:85%
Number of SATA power connectors
- 51976 power supply unit:6
- MATX SFX:3
Peripheral (Molex) power connectors (4-pin)
- 51976 power supply unit:4
- MATX SFX:2
Power supply unit (PSU) form factor
- 51976 power supply unit:ATX
- MATX SFX:SFX
Product colour
- 51976 power supply unit:Black
- MATX SFX:Aluminium
Fan diameter
- 51976 power supply unit:12 cm
- MATX SFX:8 cm

Side by side

Differences highlightedShow differences only

Comparison of 51976, MATX SFX
39 specifications	A UNYKAch 51976 power supply unit Model 51976 View product	B UNYKAch MATX SFX View product
Power4 differ
Total powerDiffers	900 W	300 W
AC input voltageDiffers	100 - 240 V	110 - 230 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Input currentKnown for one	Unknown — not stated by the source	2 A
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Known for one	Unknown — not stated by the source	49.8 W
Combined power (+12V)Known for one	Unknown — not stated by the source	240 W
Combined power (+5V)Known for one	Unknown — not stated by the source	49.8 W
Combined power (-12V)Known for one	Unknown — not stated by the source	3.6 W
Combined power (+5Vsb)Known for one	Unknown — not stated by the source	10 W
Max output current (+3.3V)Known for one	Unknown — not stated by the source	6 A
Max output current (+12V)Known for one	Unknown — not stated by the source	20 A
Max output current (+5V)Known for one	Unknown — not stated by the source	6 A
Max output current (-12V)Known for one	Unknown — not stated by the source	0.3 A
Max output current (+5Vsb)Known for one	Unknown — not stated by the source	2 A
EfficiencyDiffers	80%	85%
Power protection featuresDiffers	Over voltage, Short circuit	Over current, Over voltage, Short circuit, Under voltage
Maximum input current (@110V)Known for one	+12V	Unknown — not stated by the source
Ports & interfaces2 differ
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectorsDiffers	6	3
Peripheral (Molex) power connectors (4-pin)Differs	4	2
CPU power connector (4+4 pin)	Yes	Yes
Cabling typeKnown for one	Unknown — not stated by the source	Non-Modular
PCI Express power connectors (6+2 pin)Known for one	2	Unknown — not stated by the source
Floppy disk drive connectorKnown for one	Yes	Unknown — not stated by the source
Performance1 differ
Purpose	PC	PC
Power supply unit (PSU) form factorDiffers	ATX	SFX
ATX version	2.3	2.3
80 PLUS certificationKnown for one	80 PLUS Bronze	Unknown — not stated by the source
Design2 differ
Product colourDiffers	Black	Aluminium
Fan diameterDiffers	12 cm	8 cm
Number of fans	1 fan(s)	1 fan(s)
Fan location	Top	Top
On/off switchKnown for one	Yes	Unknown — not stated by the source
Certificates1 differ
Compliance certificates	RoHS	RoHS
CertificationDiffers	CE, TUV, ErP617, EN60950	CE EN60950 TÜV ErP OVP/UVP/OTP/OCP/OLP/OPP/SCP/ETC APFC
Weight & dimensions3 differ
WidthDiffers	140 mm	100 mm
DepthDiffers	150 mm	125 mm
HeightDiffers	85 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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