Lenovo ThinkStation P5 Manual page 37

15. Gently bend the open side of the carrier outward, until the posts on the
carrier can clear the side of the drive and insert the posts into the holes on
the side of the drive.
16. Align the tabs on the side of the drive carrier with the notches on the inside
of the tray and insert the tabs. Lower the carrier side with the red handle
down into the tray and press on the red handle until it clicks into place.
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