Ricoh M281 Series Service Manual page 118

Enhanced Security HDD Option Type M10 (D792-09)
24. Connect the power source cable [A] and data cable [B] to the enhanced security HDD
[C].
25. Install the enhanced security HDD [A] on the HDD bracket [B] with the stepped screws.

When installing the enhanced security HDD on the bracket, make sure to pass the
cables through the hole [A] of the HDD bracket.
D255/D256/M281/M282 2-90 SM