Over-Provisioning is a firmware optimization technology that allocates a certain portion of solid-state drive (SSD) capacity to the controller as cache. This allows the SSD to perform Garbage Collection (GC) more efficiently, helping maintain performance and increasing the SSD’s endurance and lifespan.

With this technology, 7% or more of drive space is reserved. . In 4K random performance and background processing performance, the number of reads and writes per second (IOPS) can be increased by 85% and 65%, respectively.

Over-Provisioning boosts SSD endurance and extends the service life of a flash drive.