HIKVISION DS-M5504HNI Series User Manual page 20

6. After the HDD is fully placed into the bracket,
reverse the hard disk box and flat the HDD.
There are two disk sockets in the bracket and
tightly insert the first HDD into the one at the
bottom.
7. Tighten the four screws marked in the figure to
fix the HDD.
For some certain HDDs, only the two upside screws
are available. Tighten the two screws and go to the
next step.
8. Tighten the two set screws on the left and right
sides of the hard disk box, shown in the figure, to
fix the inserted HDD.
9. Place the second HDD into the hard disk box,
with the PCB facing upwards.
Mobile Network Video Recorder User Manual
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