NZXT M59 - Manual (Page 9)

NZXT. 7
ASUS© Motherboard Pin Assignment
External 5.25” Drive Bay Installation
Please follow the directions below to install the 5.25” in the M59
chassis. In order to use the stealth 5.25” bay for M59, the optical
device must be mounted behind the 5.25” stealth bay.
1. Remove the front panel of the chassis by pulling from the
opening at the bottom of the front panel.
2. Remove the 5.25” black mesh for the 5.25” bay, by pushing
the clips aside