Product comparison · 2 power supply units

FSP 550-50AR power supply unit vs FSP 650-50ARN power supply unit

Key differences

Total power
- 550-50AR power supply unit:550 W
- 650-50ARN power supply unit:650 W
Combined power (+3.3V)
- 550-50AR power supply unit:135 W
- 650-50ARN power supply unit:150 W
Combined power (+5V)
- 550-50AR power supply unit:135 W
- 650-50ARN power supply unit:150 W
Max output current (+3.3V)
- 550-50AR power supply unit:17 A
- 650-50ARN power supply unit:20 A
Max output current (+12V)
- 550-50AR power supply unit:38 A
- 650-50ARN power supply unit:50 A
Max output current (+5V)
- 550-50AR power supply unit:16 A
- 650-50ARN power supply unit:20 A

Differences highlightedShow differences only

Comparison of 550-50AR, 650-50ARN
31 specifications	A FSP 550-50AR power supply unit Model 550-50AR View product	B FSP 650-50ARN power supply unit Model 650-50ARN View product
Power6 differ
Total powerDiffers	550 W	650 W
AC input voltage	230 V	230 V
Maximum input current (@110V)	+12V,+3.3V,+5V,+5Vsb,-12V	+12V,+3.3V,+5V,+5Vsb,-12V
Power Factor Correction (PFC) type	Active	Active
Combined power (+3.3V)Differs	135 W	150 W
Combined power (+5V)Differs	135 W	150 W
Max output current (+3.3V)Differs	17 A	20 A
Max output current (+12V)Differs	38 A	50 A
Max output current (+5V)Differs	16 A	20 A
Max output current (-12V)	0.3 A	0.3 A
Max output current (+5Vsb)	3 A	3 A
Power protection features	Over voltage, Overload, Short circuit	Over voltage, Overload, Short circuit
Ports & interfacesidentical
Motherboard power connector	20+4 pin ATX	20+4 pin ATX
Number of SATA power connectors	6	6
Peripheral (Molex) power connectors (4-pin)	2	2
PCI Express power connectors (8-pin)	2	2
CPU power connector (4+4 pin)	Yes	Yes
Cabling typeKnown for one	Unknown — not stated by the source	Non-Modular
Performanceidentical
Purpose	PC	PC
Power supply unit (PSU) form factor	ATX	ATX
80 PLUS certification	80 PLUS	80 PLUS
ATX version	2.3	2.3
Designidentical
Product colour	Aluminium	Aluminium
Cooling type	Active	Active
Fan diameter	12 cm	12 cm
Number of fans	1 fan(s)	1 fan(s)
Fan location	Side	Side
On/off switch	Yes	Yes
Weight & dimensionsidentical
Width	150 mm	150 mm
Depth	86 mm	86 mm
Height	140 mm	140 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.