PLANET NAS-7201 - Manual (Page 5)

Step 3: Slide in the HDDs
HDD1
HDD2
Gently slide in the SATA HDD one by one as the figure. When HDD touch the SATA connector,
slightly push the HDD to make it well connected to the SATA interface of the RAID Server
Caution
Before slide in the HDD, please do make sure the HDD is in the
correct direction. Slide in and push the HDD with violent could
damage the SATA interface of the RAID Server.
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