Product comparison · 2 power supply units

UNYKAch SFX 300W vs UNYKAch SFX 450W

Key differences

Differences highlightedShow differences only

Comparison of SFX 300W, SFX 450W
42 specifications	A UNYKAch SFX 300W View product	B UNYKAch SFX 450W View product
Power8 differ
Total powerDiffers	300 W	450 W
AC input frequencyDiffers	47 - 63 Hz	50 - 60 Hz
Power Factor Correction (PFC) typeKnown for one	Active	Unknown — not stated by the source
Max output current (+3.3V)Differs	3.75 A	20 A
Max output current (+12V1)Differs	21.4 A	23 A
Max output current (+5V)Differs	3 A	20 A
Max output current (-12V)Differs	0.3 A	0.5 A
Max output current (+5Vsb)Differs	2.5 A	2 A
EfficiencyDiffers	85%	78%
Ports & interfaces5 differ
Motherboard power cable lengthDiffers	38 cm	32 cm
Number of SATA power connectorsDiffers	3	2
SATA power cable lengthDiffers	530 mm	330,480 mm
Peripheral (Molex) power cable lengthDiffers	680,380 mm	330,480 mm
CPU power connector (4+4 pin)Known for one	Yes	Unknown — not stated by the source
CPU power cable lengthDiffers	42 cm	43 cm
CPU P4 connector (4-pin)Known for one	Unknown — not stated by the source	1
Designidentical
On/off switchKnown for one	Unknown — not stated by the source	Yes
Certificates1 differ
CertificationDiffers	EUP 2013 / ErP 617/2013 / TÜV / CE	EUP 2013 / EN60950 / TÜV / CE
Weight & dimensions1 differ
WeightDiffers	750 g	558 g
Packaging data1 differ
Package weightDiffers	844 g	718 g

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.