When building or upgrading a computer, keep in mind that the power supply can be considered as the beating heart of the PC system (with the CPU being the brains). The power supply is the most critical component when it comes to the stability of your system. Irregular and unstable voltage rails will cause unstable performance and more system crashes. Nexus power supplies are constructed without any compromises on component quality. They choose only the best components and because of this, cooling can be done in a quiet manner. A solid fan with the utmost quiet bearings will keep the power supply cool and running smoothly. The Nexus Value 430 is a 430 Watt power supply, with more than 80% efficiency, sleeved cables and an ultra compact design; it is a perfect solution for a silent PC. By carefully selecting each and every component, Nexus aims at creating the best possible mix of components to make their power supplies as quiet as possible. Carefully balancing performance and noise levels to get the best of both worlds. Confident that their power supplies are leading the market when it comes to solid performance at the lowest possible noise levels. The noise levels of the power supplies are tested in an ISO certified chamber. This chamber is the industry's standard for noise tests; with the background noise in such a chamber having as little as 15dB(A). Any product producing less noise then 15dB(A) cannot be measured. The graph below shows the noise levels at different loads. The Nexus VALUE-430 power supply is guaranteed to provide you with over 80% efficiency. This means the power supply is using the power it is drawing from the wall outlet more efficiently and less electricity is wasted. Obviously this is better for the environment and it saves your electricity bill! Also, a more efficient power supply also results in a cooler power supply. Finally, the Nexus Value 430 is slightly smaller than an ATX form factor power supply, so and it will fit in any ATX form factor computer case. This smaller size results in more space inside the PC for more/better airflow. The Value 430 has a length of just 12.5cm. Compared to regular ATX power supplies that is 1.5cm shorter and 4 to 5.5cm shorter than some modular power supplies.