Ewent EW3900 power supply unit vs Ewent EW3902 power supply unit

Comparison of EW3900, EW3902

19 specifications	A Ewent EW3900 power supply unit Model EW3900 View product	B Ewent EW3902 power supply unit Model EW3902 View product
Power1 differ
Total powerDiffers	500 W	550 W
AC input voltage	110 - 230 V	110 - 230 V
Ports & interfacesidentical
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectors	3	3
Peripheral (Molex) power connectors (4-pin)	3	3
PCI Express power connectors (6+2 pin)Known for one	—Unknown — not stated by the source	1
CPU P4 connector (4-pin)	1	1
Floppy drive power connector	1	1
Cabling type	Non-Modular	Non-Modular
Performanceidentical
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
ATX version	2.2	2.2
Designidentical
Product colour	Silver	Silver
Cooling type	Active	Active
Fan diameter	12 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
Fan location	Top	Top
Logistics dataidentical
Harmonized System (HS) codeKnown for one	—Unknown — not stated by the source	84733020
Other featuresidentical
Omnigrid (4-pin) power connectorsKnown for one	—Unknown — not stated by the source	1

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.