Just like the 5RU that came before it, the 3RU offers flexibility and growth in a smaller formfactor. With about half the depth of the 5RU, this 3RU is designed to fit into tight spaces like Flight Packs and Mobiles. The crosspoint and modules are all accessible on the rear of the frame. Truly 3RU with the power supplies and fans built into the frame. Other equipment can be stacked directly on top or below the NEXX.