A-Data Professional PD7 4GB Flash Drive - Real World Tests and Conclusion

Article Index
A-Data Professional PD7 4GB Flash Drive
The Competition, Test Info and HDTach
Real World Tests and Conclusion

Real World File Transfers:

We broke out our stopwatch and transferred a 1.87GB package of files that contained 63 folders and 1,273 files ranging in size from 3KB to 308MB.  This package is quite representative of daily file transfers.  Below is a chart that shows how it all stacked up.

 Performance Comparison

In the graph above, we see that the A-Data MyFlash drive does indeed win hands down.  It destroys both 150x SD Flash Cards from Soultek and OCZ.  The Crucial 2GB Overdrive! is the closest in terms of speed, but even that lags behind by 27 seconds (32%) when reading and 31 seconds (15%) when writing the same package of data.  Overall, I am extremely impressed with this flash drive.



If you want a flash drive to stick in your pocket that can store large amounts of data quickly, the A-Data PD7 MyFlash 4GB drive is one of your better choices.  What makes this drive even better is the fact that it is priced around $50 online.  This drive has excellent performance and is a clear winner when it comes to portable storage.  There may be smaller flash drives on the market, but I believe with the aluminum housing, this drive will be more durable than some other smaller drives.  It's survived testing here at BCCHardware, although we haven't tried some extreme drop testing, or dragged it behind a pickup truck . . .yet.



  • Tough aluminum case.
  • Very fast read and write speeds.
  • Very affordable.


  • Cap feels a little lose and could end up lost easily.
  • No security software.


BCCHardware.com Rating
Software Pack:
Total Score 9.2


 Top Pick


I'd like to give a special thanks to A-Data for sending this flash drive our way to review.  It was a pleasant surprise to see just how fast this little drive is.  If you have any questions or comments about this drive and this review, please post them in the forum at the "Comments" link below.