Asus TW300-E5/PI4 - Manual (Page 36)

Chapter 2: Hardware setup 2-16
3. Carefully remove the front panel
cover, and then set aside.
2.6.2 Installing an additional optical drive
Configure your optical drive as Master/Slave device before installing it to the
drive bay. Refer to the optical drive documentation for details.
To install an additional optical drive
1. Select the drive bay you intend to
use. Push the knock down metal
cover in and out of the chassis until
it is removed.
Take extra care when removing
the knock down metal cover.
Use tools such as a screw driver
to bend and remove the metal
cover to avoid physical injury.