The RB-RK1 rack mount kit can be attached to the front of the smaller Redbox products
so that they can be rack mounted into a standard 19 inch rack unit.
The RB-RK2 rack mount kit can be attached to the rear of the smaller Redbox products
so that they can be rack mounted into a standard 19 inch rack unit.
The RB-RK3 rack mount kit can be attached to the rear of the larger Redbox products
so that they can be rack mounted into a standard 19 inch rack unit.