Crystal Dew World [en]

General Information

General Information


Show model name and disk size.

Disk Size

1 GB = 1,000,000,000 byte


Health Status

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

Learn More “Health Status


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


Show firmware version.

Serial Number

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


Parallel ATA, Serial ATA, NVM Express, etc…


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
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