FSP Zen 300 vs FSP Zen 400

Comparison of Zen 300, Zen 400

30 specifications	A FSP Zen 300View product	B FSP Zen 400View product
Power1 differ
Total powerDiffers	300 W	400 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Power Factor Correction (PFC) typeKnown for one	—Unknown — not stated by the source	Active
Efficiency	89%	89%
Power protection features	Over current, Over voltage, Short circuit	Over current, Over voltage, Short circuit
Hold timeKnown for one	16 ms	—Unknown — not stated by the source
Ports & interfaces1 differ
Motherboard power connectorKnown for one	—Unknown — not stated by the source	20+4 pin ATX
Number of SATA power connectorsDiffers	2	6
Peripheral (Molex) power connectors (4-pin)	6	6
PCI Express power connectors (6-pin)Known for one	—Unknown — not stated by the source	1
CPU power connector (4+4 pin)	Yes	Yes
ATX power connector (20+4 pin)	Yes	Yes
Floppy drive power connector	1	1
Cabling type	Non-Modular	Non-Modular
Performanceidentical
PurposeKnown for one	—Unknown — not stated by the source	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certificationKnown for one	—Unknown — not stated by the source	80 PLUS Bronze
ATX versionKnown for one	—Unknown — not stated by the source	2.2
Noise level	0 dB	0 dB
Designidentical
Product colour	Blue	Blue
Cooling typeKnown for one	—Unknown — not stated by the source	Passive
Safety regulation & standardsidentical
SafetyKnown for one	—Unknown — not stated by the source	CB, UL, FCC, CE, TUV, NEMKO, BSMI
Weight & dimensions1 differ
WidthKnown for one	—Unknown — not stated by the source	160 mm
DepthKnown for one	—Unknown — not stated by the source	150 mm
HeightKnown for one	—Unknown — not stated by the source	86 mm
WeightDiffers	3.12 kg	3.44 kg
Certificatesidentical
CertificationKnown for one	CB, UL, FCC, CE, TUV, NEMKO, BSMI	—Unknown — not stated by the source
Other featuresidentical
Compatible operating systemsKnown for one	Intel Core i7 Extreme & AMD Athlon II	—Unknown — not stated by the source
Dimensions (WxDxH)Known for one	150 x 140 x 86 mm	—Unknown — not stated by the source

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.