How fast does KillDisk erases disks?

Erasing speed can depends on many factors:

• Drive Speed: RPM and/or controller sequential write speeds  - The most important factor
• Drive Interface: PCI-E IV (2 GB/s), SAS (6 GB/s/12 GB/s), SATA III (6 GB/s), SATA II(3 GB/s), SATA I(1.5 GB/s)
• Interface Controller: Motherboard controller interface and/or HBA/Raid card.
• Machine performance: CPU + RAM

For most modern computers and disks (manufactured within the last 5-7 years) SATA III standard is supported, so erase speed is limited by HDD/SSD throughput (disk write speed) only.

Our testing shows 10 GB in average per minute per pass on average computer configuration and hard drive with an age of up to 5 years old.

For example, a 2 TB Toshiba disk has been erased on Windows platform with one pass within 3 hours and 32 minutes, 14 TB WD disk - within 18h 53m.

Attached are real-test certificates for erasing produced by our own KIllDisk Industrial Systems:

• 2 TB Toshiba (2015) SATA III 7200rpm disk with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + verification] showing the average speed of 9GB/min per pass
• 14 TB WD (2019) SATA III 7200rpm disk with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + 10% verification] showing the average speed of 12GB/min per pass
• 600 GB HP SAS 15000rpm disk with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + verification] showing the average speed of 10GB/min per pass
• 120 GB SSD Kingston SATA III SSD with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + verification] showing the average speed of 17GB/min per pass
• 256 GB Samsung EVO 970 NVME SSD with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + verification] showing the average speed of 23GB/min per pass
• 1 TB Kingston U.2 NVME SSD with [One Pass Zeros] and [US DoD 5220.22-M, 3 passes + verification] showing the average speed of 90GB/min per pass