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2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit)

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2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit) 3d model
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2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit) 3d model
2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit) 3d model
2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit) 3d model
2.5" to 3.5" (SFF to LFF) HDD / SSD adapter (SATA and SAS, converter, mounting kit) 3d model
This model is restricted by licensing terms. 
8 Likes7 DownloadsNovember 17, 2023
This model is restricted by licensing terms. 


The adapter is designed to be used in a 3.5" (LFF) bay, fitting a 2.5" (SFF) SATA/SAS HDD/SSD drive. The interface connectors of the 2.5" drive will be positioned where the connectors of the 3.5" drive would be.

It has all the mounting holes that are physically accessible:

  • 3 on the left side of the LFF part
  • 1 on the right side of the LFF part
  • 1 on the bottom of the LFF part
  • 2 of the left side of the SFF part

It is designed to be lightweight and use little filament but still be rigid, the print needs around 24 grams / 8 meters of 1.75 mm filament. No supports needed.

I have added several versions:

  • …_threaded_insert_4.00mm - the LFF part has holes for M3x3,00 Threaded Insert by CNC Kitchen that fits the M3 round head short and long PC screw, as shown in the pictures
  • …_threaded_insert_3.85mm - same as above but slightly adjusted
  • …_threaded_insert_4.00mm - same as above but slightly adjusted
  • …_hole_3.25mm - with a 3.25 mm hole for mounting it directly with a 6-32 large screw
  • …_hole_2.75mm - same as above but slightly adjusted
  • …_hole_3.00mm - same as above but slightly adjusted
  • …_hole_3.50mm - same as above but slightly adjusted

I have included a test fit model to test which version you need to print with your printer for your screws, without printing the whole adapter.

I have also included the FreeCAD source files, so you can adjust the model to your specific needs. I used the Spreadsheet function of FreeCAD, all the important parameters are driven from a single sheet.

Note: when you mount it without the threaded insert the screw will degrade the plastic so after a few mount-unmount cycle it may become too loose for the screw. I recommend using the threaded inserts.

License: CC-BY (feel free to edit, publish, etc. but please credit me, thanks!)


8 Likes7 DownloadsNovember 17, 2023





This model is restricted by licensing terms. 
8 Likes7 DownloadsNovember 17, 2023
This model is restricted by licensing terms.