![Instal CrystalDiskInfo 9.1.1](https://cdn3.cdnme.se/5447227/9-3/1_64e61dfaddf2b33c615a3cd3.png)
Also Available: Download CrystalDiskInfo Portableįreeware programs can be downloaded used free of charge and without any time limitations. CrystalDiskInfo does not support RAID disks and IDE (Parallel ATA) and Serial ATA disks connected external ATA controller. Crystal Disk Info supports a part of USB-HDD. No disks CrystalDiskInfo supports only IDE (Parallel ATA) and Serial ATA disks connected internal ATA controller (Chipset included).
![instal CrystalDiskInfo 9.1.1 instal CrystalDiskInfo 9.1.1](https://images.sftcdn.net/images/t_app-cover-l,f_auto/p/c86c0e88-96d3-11e6-84f5-00163ec9f5fa/1710788358/crystaldiskinfo-screenshot.png)
So, almost disks do not report rotation rate.
![instal CrystalDiskInfo 9.1.1 instal CrystalDiskInfo 9.1.1](https://www.portalprogramas.com/imagenes/programas/es/899/7899_1.jpg)
Unknown “Rotation Rate” The filed of rotation rate is defined by ATA8-ACS.
![instal CrystalDiskInfo 9.1.1 instal CrystalDiskInfo 9.1.1](https://s.softdeluxe.com/screenshots/363/363413_1.png)
It displays basic HDD information, monitors S.M.A.R.T. CrystalDiskInfo is a free HDD health monitoring software for Windows.
![Instal CrystalDiskInfo 9.1.1](https://cdn3.cdnme.se/5447227/9-3/1_64e61dfaddf2b33c615a3cd3.png)