The Chieftec BPS-400S2 400W has a maximum capacity of 400 Watts.
It has an 80 Plus rating of Bronze, is built to be silent,.
|Form Factor||ATX12V||+12V Count||2|
|80 Plus Rating||Bronze||Fan Size||120mm|
|Efficiency at 100%||82.24%||Modular||no|
|Efficiency at 50%||85.59%||Silent||yes|
|Efficiency at 20%||83.28%||24 Pin Mobo Connector||yes|
|Input Voltage||100V - 240V||4+4 Pin CPU Connector||yes|
|Input Frequency Range||47Hz - 63Hz||8 Pin Connectors||2|
|+3.3V Output||20A||4 Pin Connectors||4|
|+5V Output||15A||SATA Connector||4|
The Chieftec BPS-400S2 400W power supply has a maximum wattage output of 400W. This is a very low PSU capacity, and should only be used when powering a low power system. Remember that a higher PSU capacity does not necessarily equate to a higher wattage output and a more expensive electricity bill. In fact, you may find that a higher capacity PSU will function more efficiently than a lower capacity PSU because it is dealing with a lower percentage of its maximum load - that is, it is not being stressed to the same extent.
The Chieftec BPS-400S2 400W has an 80 Plus rating of Bronze. This means the PSU operates at average efficiency levels of at least 82%, 85%, and 82% for loads of 100%, 50%, and 20% respectively. Bronze is the fourth-best 80 Plus certificate available, and as such the Chieftec BPS-400S2 400W is very efficient and is a decent PSU choice. The actual efficiencies for this PSU are 82.24%, 85.59%, and 83.28%, for loads of 100%, 50%, and 20%.
The Chieftec BPS-400S2 400W is not modular, meaning that cables are built into the PSU itself and cannot be taken out and connected back in as necessary. This can result in difficult cable management and consequently a messy build and poor airflow.
The Chieftec BPS-400S2 400W is designed for low volumes, meaning that its constant drone while your PC is on would be less noticeable - ideal for those that prefer silent environments.