What device can be used to protect evidence disks by preventing data from being written to them?

Write-blockers are devices specifically designed to prevent any data from being written to or modified on evidence disks while allowing data to be read from them. This functionality is crucial in digital forensics, as it helps maintain the integrity of the evidence by safeguarding it against accidental alterations, which could jeopardize its admissibility in court.

By using a write-blocker, investigators can ensure that the original data remains untouched, thereby preserving a complete and accurate chain of custody. This practice is foundational in forensic investigations because the validity and reliability of collected evidence can be challenged if any changes occur to the original data.

In contrast, the other options do not serve the same specific function. Security enclosures provide physical protection but do not prevent data writing. Data scramblers and encryption devices focus on data security and obfuscation rather than protecting the integrity of evidence disks from write operations. Therefore, write-blockers are the appropriate choice for preserving the authenticity of forensic evidence.