ACPI's Power Shield technology protects internal NAND ash data during sudden power outages, preventing loss, corruption, or device failure. It activates when external voltage drops to a critical level, using the internal voltage detection circuit (VDT) to stop new write commands to the ash memory.
With up to 220 milliseconds of power protection time, Power Shield allows data in the SSD's DRAM to complete its write cycle to ash storage, enhancing data integrity and reinforcing the reliability of ACPI’s solutions in critical applications.