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Corsair CX450 vs SilverStone ST30SF 300W SFX vs Seasonic FOCUS FM SSR-550FM 550W vs Corsair AX1200i 1200W Fully Modular 80+ Platinum

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Brand
Corsair
Brand
SilverStone
Brand
Seasonic
Brand
Corsair
Model
  • CP-9020120-NA
  • CP-9020120-EU
  • CP-9020120-UK
Model
  • ST30SF
  • SST-ST30SF
Model
SSR-550FM
Model
  • AX1200i
  • CP-9020008-NA
  • CP-9020008-UK
  • CMPSU-AX1200i
  • CP-9020008-AU
Release Date
📅 March 2017
Release Date
-
Release Date
-
Release Date
📅 July 2012
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
User reviews
User reviews
Price history
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Price history
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Price history
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Price history
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Supported PC parts
Supported PC parts
Supported PC parts
Supported PC parts
Wattage
450 W
Wattage
300 W
Wattage
550 W
Wattage
1200 W
Type
ATX
Type
SFX
Type
ATX
Type
ATX
Modular
No
Modular
No
Modular
Semi
Modular
Full
Efficiency
80+ Bronze
Efficiency
80+ Bronze
Efficiency
80+ Gold
Efficiency
80+ Platinum
Output
-
Output
-
Output
-
Output
+3.3V@30A, +5V@30A, +12V@100.4A, -12V@0.8A, +5VSB@3.5A
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 6+2 Pin Connectors
1
PCI-Express 6+2 Pin Connectors
0
PCI-Express 6+2 Pin Connectors
2
PCI-Express 6+2 Pin Connectors
8
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
1
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
0
EPS Connectors
1
EPS Connectors
1
EPS Connectors
1
EPS Connectors
2
SATA Connectors
4
SATA Connectors
3
SATA Connectors
6
SATA Connectors
16
Molex Connectors
4
Molex Connectors
2
Molex Connectors
3
Molex Connectors
12
Length
140 mm
Length
100 mm
Length
140 mm
Length
200 mm

What are the differences between Corsair CX450 and SilverStone ST30SF 300W SFX and Seasonic FOCUS FM SSR-550FM 550W and Corsair AX1200i 1200W Fully Modular 80+ Platinum? Analyze head-to-head all specifications and features to find out the better power supply.
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