SSD UTILITY
The KIOXIA SSD Utility hasn't changed almost at all (in terms of functionality at least) since the RC500 days and does what most do, it allows you to check and monitor the status of the drive.
It also offers a quick benchmark in case you wish to check the speed of the drive (via the SSD tuner you can adjust the over-provisioning of the drive to boost its performance).
Of course, you can also check for firmware updates and use the advanced formating and secure erase features from the tools section (you can also set alerts and use the bootable version of SSD Utility on a USB flash drive).
The language, notifications and monitoring of the utility are all placed in the settings tab.