The Switchcraft 96-Point Port EZ Norm Patch Bay (Programmable Grounds) is a single-unit 19" rack mountable modular patch bay designed for a variety of applications. The device features 2 x 48 rows of durable TT jacks with programmable grounds. On the back of the unit you simply flip a switch to change each channel from strapped (up) to isolated (down). To change the normalization of each channel, you simply insert a flat-head screwdriver into the EZ norm thread on the front panel for the channel you would like to change, and turn it to either fully normalled (up), half-normalled (down), or non-normalled (to the right). For organizing the patch bay, the unit includes changeable designation strips. For connecting the patch bay, each channel features 3-Pin I/O on the back of the unit.