b.  Remove the front USB and DisplayPort Y-cable from the assembly.
Retain all screws. These screws will be used to secure the new front USB and DisplayPort Y-cable.
 
13.  To remove the front USB and DisplayPort Y-cable from the optical drive cage:
a.  Remove the optical drive cage from the universal media bay.
Retain all screws. These screws will be secure the optical drive cage after the front USB and DisplayPort Y-cable replacement.