Best Power Supply Units in 2018

1. Best Cheap
Bitfenix BF450G
Price: $53.99
Manufacturer (OEM): Channel Well Technology

Max. DC Output: 450W

Efficiency: LAMBDA-A++ (

Modular:Cooling: 120mm rifle bearing fan (DF1202512SELN)

Dimensions (WxHxD): 150mm x 87mm x 140mm

Weight: 1.72 kg (3.79 lb)

Form Factor: ATX12V v2.4, EPS 2.92 

2. Best PSU upto 550W
Corsair RM550x
Price: $89.99
Manufacturer (OEM): Channel Well Technology

Max. DC Output: 550W

Efficiency: 80 Plus Gold, ETA-A (88-91%)

Modular: (fully)

Cooling: 135mm Rifle Bearing Fan (NR135L)

Dimensions (WxHxD): 150 x 86 x 160mm

Weight: 1.72 kg (3.79 lb)

Form Factor: ATX12V v2.4, EPS 2.92


3. Best PSU upto 650W
Seasonic SSR-600TL
Price: $199.99
Manufacturer (OEM): Seasonic

Max. DC Output: 600W

Efficiency: 80 PLUS Titanium, ETA-A+

Modular: (fully)

Cooling: Passive

Dimensions (WxHxD): 150 x 86 x 172mm

Weight: 1.8kg (3.97lb)

Form Factor: ATX12V v2.4, EPS 2.92


4. Best PSU upto 750W
Seasonic SSR-750PX
Price: $114.99
Manufacturer (OEM): Seasonic

Max. DC Output: 750W

Efficiency: 80 PLUS Gold, ETA-A (88-91%)
Modular: (fully)

Cooling: 120mm Fluid Dynamic Bearing Fan (HA1225M12F-Z)

Dimensions (WxHxD): 150 x 86 x 142mm

Weight: 1.63 kg (3.59 lb)

Form Factor: ATX12V v2.4, EPS 2.92


5. Best PSU upto 1000W
Seasonic SSR-1000PD Ultra
Price: $199.99
Manufacturer (OEM): Seasonic

Max. DC Output: 1000W

Efficiency: 80 PLUS Platinum, ETA-A (88-91%)
Modular: (fully)

Cooling: 135mm Fluid Dynamic Bearing Fan (HA1225M12F-Z)

Dimensions (WxHxD): 150 x 86 x 172mm

Weight: 2.08kg (4.59lb)

Form Factor: ATX12V v2.4, EPS 2.92


6. Best PSU more than 1000W
Seasonic SSR-1000PD Ultra
Price: $359.99
Manufacturer (OEM): Corsair AX1600i

Max. DC Output: 1600W

Efficiency: 80 PLUS Titanium, ETA-A+
Modular: (fully)

Cooling: 140mm Fluid Dynamic Bearing Fan (NR140P)

Dimensions (WxHxD): 150 x 86 x 200mm

Weight: 2.6kg (5.73lb)

Form Factor: ATX12V v2.4, EPS 2.92

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