Upper

Show model name and disk size.

Disk Size

1 GB = 1,000,000,000 byte

Lower

Health Status

• Good : Blue
• Caution : Yellow
• Bad : Red
• Unknown : Gray

Learn More “Health Status”

Temperature

Celsius (°C)	Fahrenheit (°F)	Background Color
Alert Temperature ~	Alert Temperature ~	Red
Alert Temperature =	Alert Temperature =	Yellow
~ Alert Temperature	~ Alert Temperature	Blue
Unknown	Unknown	Gray

* CrystalDiskInfo 8.2.1 or later depends on Alert Temperature Settings

Firmware

Show firmware version.

Serial Number

Show serial number. If you use “Function > Hide Serial Number”, these words were replaced “*”.

Interface

Parallel ATA, Serial ATA, NVM Express, etc…

Standard

Format : “Major version | Minor version”

• Major version : ATA-1~3, ATA/ATAPI-4~7, ATA8-ACS, etc…
• Minor version : “ATA8-ACS version 6”, “ATA/ATAPI-7 T13 1532D version 1”, etc…
• NVMe : NVM Express 1.0 etc…

Transfer Mode

Format : “Current Transfer Mode | Supported Transfer Mode”
PIO/DMA, Ultra DMA 16/25/33/44/66/100/133, SATA 150/300/600
PCIe 1.0/2.0/3.0 x1/x2/x4/x8/x16

Drive Letter

Show allocated drive letter.

Buffer Size

Show buffer size. A part of disks does not support it.

NV Cache Size

Show NV cache size for Hybrid HDD.

Rotation Rate

Show rotation rate which is defined at ATA8-ACS.
If the Nominal Media Rotation Rate = 0x01 (Non-rotating media), it shows “—- (SSD)”.

Power on Count

Show power on count.

Power on Hours

Show power on hours.

Supported Features

• S.M.A.R.T. : Self-Monitoring, Analysis and Reporting Technology
• APM : Advanced Power Management
• AAM : Automatic Acoustic Management
• NCQ : Native Command Queuing
• TRIM : Trim function of DATA SET MANAGEMENT command
• DevSleep