Avoid shady “clean my Mac” sites. Go directly to the Blackmagic Design support center or their official page. Look for “Blackmagic Disk Speed Test” — it’s often bundled with their Desktop Video utility but can be downloaded standalone. The file name typically looks like: Blackmagic_Disk_Speed_Test_vX.X.dmg
Visit Blackmagic Design’s support center, grab the latest DMG, and see just how fast your Mac really is.
Here is everything you need to know about downloading the DMG, installing it safely, and interpreting the results.
Pros:
