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Synology DiskStation DS120j single bay NAS Review – sub £100 NAS !

To test real-life file/folder performance we use a number of different file/folder combinations to test the read and write performance of the NAS device. Using the FastCopy utility to get an MB/s and time taken for each transfer, the data is written from and read back to a 240GB SSD.

We use the following file/folder types:

  • 100GB data file.
  • 60GB iso image.
  • 60GB Steam folder – 29,521 files.
  • 50GB File folder – 28,523 files.
  • 21GB 8K Movie demos.
  • 12GB Movie folder – 24 files (mix of Blu-ray and 4K files).
  • 11GB 4K Raw Movie Clips (8 MP4V files).
  • 10GB Photo folder – 621 files (mix of png, raw and jpeg images).
  • 10GB Audio folder – 1,483 files (mix of mp3 and .flac files).
  • 5GB (1.5bn pixel) photo.
  • Blu-ray movie.


The DiskStation DS120j tackles our real life file transfer tests without too many problems.

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