My Passport Pro 4Tb Speed Test Issues

When I first run the speed test with Blackmagic Disk Speed Test, I got the 233mbps for read and write. Out of the box it is configured in RAID0.

I reconfigured the Passport Pro to be RAID1 and re-ran the speed test, getting lower results (obviously).

So then I wanted to switch it back to RAID0 and yet again re-run the speed test and now my read speed is never higher then 30mpbs

Any idea what happened there?

The shouldnt my read speed be up thre with the 200-233mbps write speed it shows?

Using a 2011 Macbook Air with i5 CPU, 4GB and a 128 SSD.


Are you able to test the drive on a different computer?

Also you can try using a different application to test the unit. If stills the same, try contacting WD Support for further assistance.