Asrock Challenger CL-650B, 650W, 80PLUS Bronze

This Asrock brand power supply unit has an 80 PLUS Bronze energy efficiency certificate and a power output of 650W.

The 650W power will be enough for running Microsoft Office programs, browsing the internet, and budget-level computer games. The power supply unit will be able to run a computer with a mid-range processor, mid-range graphics card (for example, GTX 1650), and 1-2 hard drives. For serious gaming, a more powerful power supply unit is needed.

The diameter of this power supply unit's fan is 120 mm, which will ensure quiet operation in mid-range computers. For especially quiet power supply unit operation, we recommend selecting a fan with a 135 mm or 140 mm diameter.

The power supply has received the 80 PLUS Bronze energy efficiency certificate, which guarantees at least 85% efficiency at 50% load. This means that for every 100W of power the power supply draws from the electrical grid, at least 85W is delivered to your computer components, while the remaining 15W is lost as heat.

The color of the power supply is Melna. It is equipped with flat cables, whose color is Melna.

This is a power supply that complies with ATX 2.0 requirements. The power supply has only 6-pin and 8-pin connectors, which can handle only 75 W and 150 W of power, respectively. Modern graphics cards' high power needs exceed the capabilities of ATX 2.0 connectors. When building a system with a very powerful GPU, such as an RTX 4070, you will need an ATX 3.* standard power supply.

The power supply unit does not have modular cables; all cables are attached to the power supply unit and are not removable. Despite this, it will work just as well as a power supply unit with modular cables.