Comparison Cougar STC STC 500 vs Cougar XTC XTC500

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	Cougar STC STC 500	Cougar XTC XTC500
	Outdated Product	Outdated Product
all specs only differences
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Power	500 W	500 W
Form factor	ATX	ATX
Specs
PFC	active	active
Efficiency	86 %	86 %
Cooling system	1 fan	1 fan
Fan size	120 mm	120 mm
Certification	80+	80+
Power connectors
MB/CPU power supply	24+8 (4+4) pin	24+8 (4+4) pin
SATA	5	5
MOLEX	2	2
PCI-E 8pin (6+2)	2	2
Cable system	non-modular	non-modular
Cable length
MB	450 mm	450 mm
CPU	650 mm	550 mm
SATA	450 mm	450 mm
MOLEX	450 mm	450 mm
PCI-E	450 mm	450 mm
Max. power
+3.3V	16 A	16 A
+5V	18 A	18 A
+12V1	38 A	38 A
-12V	0.3 A	0.3 A
+5Vsb	2.5 A	2 A
+12V	456 W	456 W
+3.3V +5V	110 W	110 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
Dimensions (HxWxD)	86x150x140 mm	86x140x150 mm
Weight	1.48 kg
Added to E-Catalog	april 2023	november 2020

+5Vsb

The maximum current that the PSU is capable of issuing + 5Vsb to the power line.

For more information about power lines in general, see "+3.3V". Specifically, the + 5Vsb line is used to power the computer electronics in standby mode, when the main and only task of the system is to respond to pressing the power button. This does not require high power, so this figure rarely exceeds 3A.