QNAP TS-653A - Page 82

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2. Install the HDDs
a. For 3.5” HDDs, secure the four screws in the back of the hard drive tray.
b. For 2.5” HDDs, follow the signs which are marked on the tray then secure the
three screws in the back of the hard drive tray
3. Insert the hard drive trays into the NAS all the way to the rear and push the lever back
until you hear a click.