Chieftec GPA-500S power supply unit vs Chieftec GPA-500S8 power supply unit

Comparison of GPA-500S, GPA-500S8

31 specifications	A Chieftec GPA-500S power supply unit Model GPA-500S View product	B Chieftec GPA-500S8 power supply unit Model GPA-500S8 View product
Poweridentical
Total power	500 W	500 W
AC input voltage	230 V	230 V
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)	130 W	130 W
Combined power (+12V)	396 W	396 W
Combined power (+5V)	130 W	130 W
Combined power (-12V)	3.6 W	3.6 W
Combined power (+5Vsb)	12.5 W	12.5 W
Max output current (+3.3V)	22 A	22 A
Max output current (+12V)	24 A	24 A
Max output current (+5V)	19 A	19 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	2.5 A	2.5 A
Power protection features	Over current, Over voltage, Overload, Short circuit, Under voltage, Overheating	Over current, Over voltage, Overload, Short circuit, Under voltage, Overheating
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)	2	2
PCI Express power connectors (6+2 pin)	1	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	2.3	2.3
Noise level	24 dB	24 dB
Mean time between failures (MTBF)	100000 h	100000 h
Designidentical
Product colour	Grey	Grey
Fan diameter	12 cm	12 cm
Certificatesidentical
Compliance certificates	RoHS	RoHS
Certification	FCC, CE, CB	FCC, CE, CB
Other featuresidentical
Dimensions (WxDxH)	150 x 140 x 87 mm	150 x 140 x 87 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.