The Corsair HX620 620W has a maximum capacity of 620 Watts.
It has an 80 Plus rating of Standard, is built to be modular,.
|Form Factor||ATX12V & EPS12V||Fan Size||120mm|
|80 Plus Rating||Standard||Modular||yes|
|Efficiency at 100%||81.28%||Silent||no|
|Efficiency at 50%||84.63%||24 Pin Mobo Connector||yes|
|Efficiency at 20%||81.57%||4+4 Pin CPU Connector||yes|
|Input Voltage||100V - 240V||8 Pin Connectors||2|
|Input Frequency Range||50Hz - 60Hz||6 Pin Connectors||2|
|+3.3V Output||24A||4 Pin Connectors||10|
|+5V Output||30A||SATA Connector||8|
The Corsair HX620 620W power supply has a maximum wattage output of 620W. This is a decent capacity, and should be fine at handling the majority of mid-performance PC builds, but you could find yourself in trouble if you do not make certain of its capability to power any proposed build. 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 Corsair HX620 620W has an 80 Plus rating of Standard. This means the PSU operates at average efficiency levels of at least 80% for loads of 100%, 50%, and 20%. Standard is the lowest 80 Plus certificate available, but with 80% load efficiency minimums, the Corsair HX620 620W is still reliably efficient and is by no means a bad PSU choice. The actual efficiencies for this PSU are 81.28%, 84.63%, and 81.57%, for loads of 100%, 50%, and 20%.
The Corsair HX620 620W is modular, meaning that cables can be taken out and connected back in as necessary. This can make cable management much easier, leading to a less chaotic build, and better airflow.
The Corsair HX620 620W is not designed for low volumes, meaning that its constant drone while your PC is on could potentially be noticeable and irritating, though this may only be a problem for those that require silent environments.