How can I mount a hard drive in a case with no drive bays?

August 21, 2026 4 answers
Asked by MellowCedar42
I'm preparing to edit videos and images and found a reasonably priced HDD that fits my storage needs, but my older computer case has nowhere to mount a 3.5-inch drive. I already have an NVMe drive, but it isn't large enough for everything and I can't delete its current files. An SSD would be too expensive, so I'm looking for a safe, practical way to install or use the HDD without damaging it or risking my data.

Answers

SilverThimble88
A custom bracket, including one made with a 3D printer, could work if thereโ€™s no suitable commercial drive cage. Whatever method you use, keep the HDD away from fans, leave some airflow around it, and make sure it cannot short against exposed metal.
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CopperHorizon31
As a temporary option, you could place the drive flat on the bottom of the case, but it should still be secured so it canโ€™t slide into fans or pull on the cables. Remove it before moving the computer, since a loose mechanical drive can be damaged by impacts.
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QuietMarble5
If you only need the storage occasionally, a USB enclosure is another option. Itโ€™s simple and avoids modifying the case, though internal SATA will generally be more reliable and faster for large video projects. Use a good enclosure and cable, and donโ€™t disconnect it while files are being written.
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OrbitingPine7
The safest solution is to mount the HDD in a separate drive cage or bracket, then secure that cage inside the case with strong double-sided tape or another suitable mounting method. Avoid letting the drive move around freely, and make sure it isnโ€™t blocking airflow or pressing against any cables. Taping the cage is preferable to taping the drive itself because it avoids residue and makes future removal easier.

VelvetKite19: You can position the cage horizontally or vertically, as long as the drive is firmly supported and the power and data cables arenโ€™t being bent or stressed.

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