Today for review I have the pleasure of reviewing one of SilverStones' new 80Plus power supplies, it is the Element and it is capable of putting out 400Watts of power while being 80% plus efficient at the same time. The 80Plus program is only for a select few companies out there, so being in the program says quite a bit about the quality of the power supply and even more about SilverStones' high standards. So please read on to learn more about this great power supply...

SilverStone Element 400Watt PSU ST40EF

Reviewed by: Kristofer Brozio AkA Dracos

Sponsor: SilverStone

Tech Specs,Features or the Basic Info:

SilverStone Element 400Watt PSU ST40EF

Equipped with a new generation of design and components, the Element ST40EF continues SilverStone’s stride toward more efficient power supplies. With higher than 80% efficiency across all loading conditions (from 20% to 100%), the ST40EF produces less wasted heat than typical power supplies and allows the included 120mm fan to operate at minimal speeds, ensuring silent operation for nearly all applications. This stable output and efficient characteristics are packed inside an environmentally-friendly casing that is compatible with nearly any ATX enclosures on the market. If strong and silence are the main priorities, the Element ST40EF is for you.

Features:

Efficiency over 80% across all loading conditions (20% to 100%)

Dual +12V rails for advanced systems

Dual PCI-E connectors (Multi-GPU ready)

Industry-leading silent running 120mm fan

Support for ATX 12V 2.2

Active PFC

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Specs:

Color black (lead-free paint)

Cooling System 1x 120mm fan

Noise Level 20 dBA minimum ~ 29dBA maximum

Weight 2.5 kg

Dimension 150 mm (W) x 86 mm (H) x 140 mm (D)

Max. DC Output: 400W

Load Range:

+3.3V +5V +12V1 +12V2 +5VSB -12V

Max.(Amps) 20A 14A 16A 18A 3.0A 0.3A

Peak (Amps) 18A 18A 3.5A

Min.(Amps) 0.5A 0.3A 1.0A 1.0A 0 0

Range(%) +/-3% +/-3% +/-3% +/-3% +/-3% +/-10%

Ripple(mVp-p) 50mV 50mV 120mV 120mV 50mV 120mV

combined+3.3 , +5V 130W

combined +12V 30A/336W

Connectors:

1 x 24 pin motherboard connector (550mm)

1 x 4-pin ATX12V connector (550mm)

1 x 6-pin PCI-E (550mm)

2 x triple SATA power connectors (500mm + 250mm + 250mm)

6 x 4-pin IDE power connector (500mm + 250mm + 150mm)

2 x 4-pin floppy power connector (500mm + 250mm + 150mm +150mm)

Input Voltage 90V ~ 264V (Auto Range)

Input Frequency Range 47Hz ~ 63Hz

PFC Active PFC (PF>0.95 at full load)

Efficiency Typical >80%

MTBF 100,000 hours at 25°C, full load

Operating temperature 0 ~ 50°C

Protection Over current protection, Over voltage protection, Short circuit, No load operation