Asrock Challenger CL-550B, 550W, 80PLUS Bronze

Available for purchase is a power supply produced by Asrock with a power output of 550W. The product has been awarded an 80 PLUS Bronze energy efficiency certificate.

The power of 550W is sufficient for basic computer gaming, web browsing, and Office applications use. The unit is designed for a computer with a budget processor, integrated graphics card, small SSD or hard drive. If you decide to upgrade your computer in the future, you should definitely consider purchasing a more powerful power supply.

This power supply unit is equipped with a 120 mm fan, which is the industry standard for ensuring quiet operation in average computers. If you want an especially quiet unit, look for one with a fan diameter of 135 mm or 140 mm.

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 this power supply is Melna. The cable color is Melna and they are flat.

This power supply unit has been assigned the ATX 2.0 standard. This means that the unit is equipped only with 6-pin and 8-pin connectors, providing 75W and 150W power respectively. It's important to note that this unit will be compatible with RTX 4070 and more powerful cards, but you will need to use the 2x8-pin to 16-pin 12VHPWR adapter included with the graphics card. ATX 2.0 power connectors are not designed to handle the high power fluctuations of modern graphics cards; therefore, if you are building a system with a powerful GPU, such as the RTX 4070, we recommend choosing a power supply unit with the ATX 3.* standard and 12VHPWR (PCIe 5.0) connector.

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.