Complies with the Intel Power Design Guide ATX 3.1. These power supplies are designed to meet the demanding power requirements of tomorrow and provide maximum support for overall performance according to the ATX 3.1 and PCIe Gen 5.1 specifications, ensuring peak performance even with future hardware upgrades. We adhere to the ATX 3.1 recommendation level. Given the changes in the new specification from ATX 3.0 to ATX 3.1, FSP follows the criteria recommended by Intel to stay up to date and focus on user benefits. The importance of the hold-up time: The hold-up time indicates how long a power supply can maintain a constant output voltage at a regular output level after it has been turned off or during a power shortage. This time frame helps prevent disturbances in the computer system or sudden short circuits, overloads, power outages, or voltage drops in the power grid.